634939204 has 27 divisors (see below), whose sum is σ = 1141480893. Its totient is φ = 309028272.

The previous prime is 634939183. The next prime is 634939289. The reversal of 634939204 is 402939436.

The square root of 634939204 is 25198.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 600740100 + 34199104 = 24510^2 + 5848^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2166882 + ... + 2167174.

Almost surely, 2^634939204 is an apocalyptic number.

634939204 is the 25198-th square number.

It is an amenable number.

634939204 is a deficient number, since it is larger than the sum of its proper divisors (506541689).

634939204 is an equidigital number, since it uses as much as digits as its factorization.

634939204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

The cubic root of 634939204 is about 859.4963717924.

The spelling of 634939204 in words is "six hundred thirty-four million, nine hundred thirty-nine thousand, two hundred four".