39938664 has 32 divisors (see below), whose sum is σ = 103069440. Its totient is φ = 12883200.

The previous prime is 39938653. The next prime is 39938681. The reversal of 39938664 is 46683993.

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 7 ways as a sum of consecutive naturals, for example, 26097 + ... + 27584.

It is an arithmetic number, because the mean of its divisors is an integer number (3220920).

Almost surely, 2^39938664 is an apocalyptic number.

It is an amenable number.

39938664 is an abundant number, since it is smaller than the sum of its proper divisors (63130776).

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

39938664 is a wasteful number, since it uses less digits than its factorization.

39938664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53721 (or 53717 counting only the distinct ones).

The product of its digits is 839808, while the sum is 48.

The square root of 39938664 is about 6319.7044234679. The cubic root of 39938664 is about 341.8202947693.

The spelling of 39938664 in words is "thirty-nine million, nine hundred thirty-eight thousand, six hundred sixty-four".