39664704 has 112 divisors (see below), whose sum is σ = 112654080. Its totient is φ = 12280320.

The previous prime is 39664699. The next prime is 39664733. The reversal of 39664704 is 40746693.

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 15 ways as a sum of consecutive naturals, for example, 302719 + ... + 302849.

It is an arithmetic number, because the mean of its divisors is an integer number (1005840).

Almost surely, 2^39664704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39664704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56327040).

39664704 is an abundant number, since it is smaller than the sum of its proper divisors (72989376).

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

39664704 is a wasteful number, since it uses less digits than its factorization.

39664704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 39664704 is about 6297.9920609667. The cubic root of 39664704 is about 341.0369266547.

The spelling of 39664704 in words is "thirty-nine million, six hundred sixty-four thousand, seven hundred four".