38972688 has 20 divisors (see below), whose sum is σ = 100679568. Its totient is φ = 12990880.

The previous prime is 38972671. The next prime is 38972693. The reversal of 38972688 is 88627983.

It is a self number, because there is not a number n which added to its sum of digits gives 38972688.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405918 + ... + 406013.

Almost surely, 2^38972688 is an apocalyptic number.

It is an amenable number.

38972688 is an abundant number, since it is smaller than the sum of its proper divisors (61706880).

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

38972688 is a wasteful number, since it uses less digits than its factorization.

38972688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811942 (or 811936 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 38972688 is about 6242.8109053535. The cubic root of 38972688 is about 339.0419627661.

The spelling of 38972688 in words is "thirty-eight million, nine hundred seventy-two thousand, six hundred eighty-eight".