39123904 has 28 divisors (see below), whose sum is σ = 78007464. Its totient is φ = 19468544.

The previous prime is 39123899. The next prime is 39123923. The reversal of 39123904 is 40932193.

39123904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13182 + ... + 15874.

Almost surely, 2^39123904 is an apocalyptic number.

It is an amenable number.

39123904 is a deficient number, since it is larger than the sum of its proper divisors (38883560).

39123904 is a wasteful number, since it uses less digits than its factorization.

39123904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932 (or 2922 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 39123904 is about 6254.9103910448. The cubic root of 39123904 is about 339.4798968375.

The spelling of 39123904 in words is "thirty-nine million, one hundred twenty-three thousand, nine hundred four".