38656816 has 40 divisors (see below), whose sum is σ = 82137600. Its totient is φ = 17478720.

The previous prime is 38656799. The next prime is 38656817. The reversal of 38656816 is 61865683.

38656816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38656817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41605 + ... + 42523.

It is an arithmetic number, because the mean of its divisors is an integer number (2053440).

Almost surely, 2^38656816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38656816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41068800).

38656816 is an abundant number, since it is smaller than the sum of its proper divisors (43480784).

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

38656816 is a wasteful number, since it uses less digits than its factorization.

38656816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1171 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 38656816 is about 6217.4605748650. The cubic root of 38656816 is about 338.1235032956.

The spelling of 38656816 in words is "thirty-eight million, six hundred fifty-six thousand, eight hundred sixteen".