39868704 has 36 divisors (see below), whose sum is σ = 113377446. Its totient is φ = 13289472.

The previous prime is 39868679. The next prime is 39868711. The reversal of 39868704 is 40786893.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20684304 + 19184400 = 4548^2 + 4380^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 39868704.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68929 + ... + 69504.

Almost surely, 2^39868704 is an apocalyptic number.

It is an amenable number.

39868704 is an abundant number, since it is smaller than the sum of its proper divisors (73508742).

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

39868704 is a wasteful number, since it uses less digits than its factorization.

39868704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138449 (or 138438 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 39868704 is about 6314.1669284237. The cubic root of 39868704 is about 341.6205908387.

The spelling of 39868704 in words is "thirty-nine million, eight hundred sixty-eight thousand, seven hundred four".