39680404 has 12 divisors (see below), whose sum is σ = 69679764. Its totient is φ = 19771904.

The previous prime is 39680393. The next prime is 39680413. The reversal of 39680404 is 40408693.

It can be written as a sum of positive squares in 2 ways, for example, as 39087504 + 592900 = 6252^2 + 770^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 39680404.

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, 15757 + ... + 18100.

It is an arithmetic number, because the mean of its divisors is an integer number (5806647).

Almost surely, 2^39680404 is an apocalyptic number.

It is an amenable number.

39680404 is a deficient number, since it is larger than the sum of its proper divisors (29999360).

39680404 is a wasteful number, since it uses less digits than its factorization.

39680404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34154 (or 34152 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 39680404 is about 6299.2383666599. The cubic root of 39680404 is about 341.0819168931.

The spelling of 39680404 in words is "thirty-nine million, six hundred eighty thousand, four hundred four".