39990968 has 16 divisors (see below), whose sum is σ = 75143160. Its totient is φ = 19952800.

The previous prime is 39990947. The next prime is 39990983. The reversal of 39990968 is 86909993.

It is a congruent number.

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, 1163 + ... + 9018.

Almost surely, 2^39990968 is an apocalyptic number.

It is an amenable number.

39990968 is a deficient number, since it is larger than the sum of its proper divisors (35152192).

39990968 is a wasteful number, since it uses less digits than its factorization.

39990968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10678 (or 10674 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 53.

The square root of 39990968 is about 6323.8412377289. The cubic root of 39990968 is about 341.9694465598.

The spelling of 39990968 in words is "thirty-nine million, nine hundred ninety thousand, nine hundred sixty-eight".