38163216 has 80 divisors (see below), whose sum is σ = 121353344. Its totient is φ = 10063872.

The previous prime is 38163211. The next prime is 38163259. The reversal of 38163216 is 61236183.

38163216 is a nontrivial binomial coefficient, being equal to C(8737, 2).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38163211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 8736.

Almost surely, 2^38163216 is an apocalyptic number.

38163216 is the 8736-th triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38163216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60676672).

38163216 is an abundant number, since it is smaller than the sum of its proper divisors (83190128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38163216 is a wasteful number, since it uses less digits than its factorization.

38163216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8768 (or 8762 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 38163216 is about 6177.6383837191. The cubic root of 38163216 is about 336.6781936822.

Adding to 38163216 its reverse (61236183), we get a palindrome (99399399).

The spelling of 38163216 in words is "thirty-eight million, one hundred sixty-three thousand, two hundred sixteen".