39913868 has 12 divisors (see below), whose sum is σ = 70254240. Its totient is φ = 19841232.

The previous prime is 39913859. The next prime is 39913871. The reversal of 39913868 is 86831993.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 28148 + ... + 29531.

It is an arithmetic number, because the mean of its divisors is an integer number (5854520).

Almost surely, 2^39913868 is an apocalyptic number.

It is an amenable number.

39913868 is a deficient number, since it is larger than the sum of its proper divisors (30340372).

39913868 is a wasteful number, since it uses less digits than its factorization.

39913868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57856 (or 57854 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 39913868 is about 6317.7423182653. The cubic root of 39913868 is about 341.7495401850.

The spelling of 39913868 in words is "thirty-nine million, nine hundred thirteen thousand, eight hundred sixty-eight".