38409939624 has 32 divisors (see below), whose sum is σ = 109742685120. Its totient is φ = 10974268416.

The previous prime is 38409939613. The next prime is 38409939637. The reversal of 38409939624 is 42693990483.

It is a happy number.

It is a super-2 number, since 2×38409939624² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114315129 + ... + 114315464.

It is an arithmetic number, because the mean of its divisors is an integer number (3429458910).

Almost surely, 2^38409939624 is an apocalyptic number.

It is an amenable number.

38409939624 is an abundant number, since it is smaller than the sum of its proper divisors (71332745496).

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

38409939624 is a wasteful number, since it uses less digits than its factorization.

38409939624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228630609 (or 228630605 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 57.

The spelling of 38409939624 in words is "thirty-eight billion, four hundred nine million, nine hundred thirty-nine thousand, six hundred twenty-four".