38904957 has 48 divisors (see below), whose sum is σ = 70295680. Its totient is φ = 20186496.

The previous prime is 38904953. The next prime is 38904973. The reversal of 38904957 is 75940983.

38904957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38904957 - 2² = 38904953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38904953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54519 + ... + 55227.

Almost surely, 2^38904957 is an apocalyptic number.

It is an amenable number.

38904957 is a deficient number, since it is larger than the sum of its proper divisors (31390723).

38904957 is a wasteful number, since it uses less digits than its factorization.

38904957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 38904957 is about 6237.3838265734. The cubic root of 38904957 is about 338.8454408073.

The spelling of 38904957 in words is "thirty-eight million, nine hundred four thousand, nine hundred fifty-seven".