38975720 has 32 divisors (see below), whose sum is σ = 100224000. Its totient is φ = 13363008.

The previous prime is 38975719. The next prime is 38975743. The reversal of 38975720 is 2757983.

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, 69320 + ... + 69879.

It is an arithmetic number, because the mean of its divisors is an integer number (3132000).

Almost surely, 2^38975720 is an apocalyptic number.

It is an amenable number.

38975720 is an abundant number, since it is smaller than the sum of its proper divisors (61248280).

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

38975720 is a wasteful number, since it uses less digits than its factorization.

38975720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139217 (or 139213 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 38975720 is about 6243.0537399577. The cubic root of 38975720 is about 339.0507548085.

The spelling of 38975720 in words is "thirty-eight million, nine hundred seventy-five thousand, seven hundred twenty".