39999976 has 16 divisors (see below), whose sum is σ = 76744800. Its totient is φ = 19534704.

The previous prime is 39999943. The next prime is 39999979. The reversal of 39999976 is 67999993.

It is not an unprimeable number, because it can be changed into a prime (39999979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57796 + ... + 58483.

It is an arithmetic number, because the mean of its divisors is an integer number (4796550).

Almost surely, 2^39999976 is an apocalyptic number.

It is an amenable number.

39999976 is a deficient number, since it is larger than the sum of its proper divisors (36744824).

39999976 is a wasteful number, since it uses less digits than its factorization.

39999976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116328 (or 116324 counting only the distinct ones).

The product of its digits is 7440174, while the sum is 61.

The square root of 39999976 is about 6324.5534229699. The cubic root of 39999976 is about 341.9951209363.

The spelling of 39999976 in words is "thirty-nine million, nine hundred ninety-nine thousand, nine hundred seventy-six".