38913904 has 10 divisors (see below), whose sum is σ = 75395720. Its totient is φ = 19456944.

The previous prime is 38913887. The next prime is 38913937. The reversal of 38913904 is 40931983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1216044 + ... + 1216075.

It is an arithmetic number, because the mean of its divisors is an integer number (7539572).

Almost surely, 2^38913904 is an apocalyptic number.

It is an amenable number.

38913904 is a deficient number, since it is larger than the sum of its proper divisors (36481816).

38913904 is a wasteful number, since it uses less digits than its factorization.

38913904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432127 (or 2432121 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 38913904 is about 6238.1009930908. The cubic root of 38913904 is about 338.8714136569.

The spelling of 38913904 in words is "thirty-eight million, nine hundred thirteen thousand, nine hundred four".