38812972 has 48 divisors (see below), whose sum is σ = 82615680. Its totient is φ = 15724800.

The previous prime is 38812967. The next prime is 38812993. The reversal of 38812972 is 27921883.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12847 + ... + 15577.

It is an arithmetic number, because the mean of its divisors is an integer number (1721160).

Almost surely, 2^38812972 is an apocalyptic number.

It is an amenable number.

38812972 is an abundant number, since it is smaller than the sum of its proper divisors (43802708).

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

38812972 is a wasteful number, since it uses less digits than its factorization.

38812972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782 (or 2780 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 38812972 is about 6230.0057784885. The cubic root of 38812972 is about 338.5781801360.

The spelling of 38812972 in words is "thirty-eight million, eight hundred twelve thousand, nine hundred seventy-two".