39904038 has 24 divisors (see below), whose sum is σ = 86580000. Its totient is φ = 13282704.

The previous prime is 39904021. The next prime is 39904069. The reversal of 39904038 is 83040993.

It is a junction number, because it is equal to n+sod(n) for n = 39903993 and 39904011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18963 + ... + 20961.

It is an arithmetic number, because the mean of its divisors is an integer number (3607500).

Almost surely, 2^39904038 is an apocalyptic number.

39904038 is an abundant number, since it is smaller than the sum of its proper divisors (46675962).

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

39904038 is a wasteful number, since it uses less digits than its factorization.

39904038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116 (or 3113 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 39904038 is about 6316.9643025745. The cubic root of 39904038 is about 341.7214824867.

The spelling of 39904038 in words is "thirty-nine million, nine hundred four thousand, thirty-eight".