39956916 has 12 divisors (see below), whose sum is σ = 93232832. Its totient is φ = 13318968.

The previous prime is 39956869. The next prime is 39956927. The reversal of 39956916 is 61965993.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1664860 + ... + 1664883.

Almost surely, 2^39956916 is an apocalyptic number.

It is an amenable number.

39956916 is an abundant number, since it is smaller than the sum of its proper divisors (53275916).

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

39956916 is a wasteful number, since it uses less digits than its factorization.

39956916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329750 (or 3329748 counting only the distinct ones).

The product of its digits is 393660, while the sum is 48.

The square root of 39956916 is about 6321.1483134000. The cubic root of 39956916 is about 341.8723575513.

The spelling of 39956916 in words is "thirty-nine million, nine hundred fifty-six thousand, nine hundred sixteen".