38907860 has 12 divisors (see below), whose sum is σ = 81706548. Its totient is φ = 15563136.

The previous prime is 38907857. The next prime is 38907871. The reversal of 38907860 is 6870983.

It can be written as a sum of positive squares in 2 ways, for example, as 13162384 + 25745476 = 3628^2 + 5074^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 972677 + ... + 972716.

It is an arithmetic number, because the mean of its divisors is an integer number (6808879).

Almost surely, 2^38907860 is an apocalyptic number.

It is an amenable number.

38907860 is an abundant number, since it is smaller than the sum of its proper divisors (42798688).

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

38907860 is a wasteful number, since it uses less digits than its factorization.

38907860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945402 (or 1945400 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 38907860 is about 6237.6165319776. The cubic root of 38907860 is about 338.8538685581.

The spelling of 38907860 in words is "thirty-eight million, nine hundred seven thousand, eight hundred sixty".