38157816 has 32 divisors (see below), whose sum is σ = 95634000. Its totient is φ = 12687360.

The previous prime is 38157803. The next prime is 38157817. The reversal of 38157816 is 61875183.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38157817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9006 + ... + 12546.

Almost surely, 2^38157816 is an apocalyptic number.

It is an amenable number.

38157816 is an abundant number, since it is smaller than the sum of its proper divisors (57476184).

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

38157816 is a wasteful number, since it uses less digits than its factorization.

38157816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999 (or 3995 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 38157816 is about 6177.2013080359. The cubic root of 38157816 is about 336.6623132245.

The spelling of 38157816 in words is "thirty-eight million, one hundred fifty-seven thousand, eight hundred sixteen".