38407572 has 54 divisors (see below), whose sum is σ = 112941738. Its totient is φ = 10973088.

The previous prime is 38407561. The next prime is 38407627. The reversal of 38407572 is 27570483.

38407572 is a `hidden beast` number, since 3 + 84 + 0 + 7 + 572 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26255376 + 12152196 = 5124^2 + 3486^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9123 + ... + 12650.

Almost surely, 2^38407572 is an apocalyptic number.

It is an amenable number.

38407572 is an abundant number, since it is smaller than the sum of its proper divisors (74534166).

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

38407572 is a wasteful number, since it uses less digits than its factorization.

38407572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21797 (or 21785 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 38407572 is about 6197.3842869391. The cubic root of 38407572 is about 337.3952399138.

The spelling of 38407572 in words is "thirty-eight million, four hundred seven thousand, five hundred seventy-two".