634641456 has 20 divisors (see below), whose sum is σ = 1639490552. Its totient is φ = 211547136.

The previous prime is 634641443. The next prime is 634641463. The reversal of 634641456 is 654146436.

634641456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 6610801 + ... + 6610896.

Almost surely, 2^634641456 is an apocalyptic number.

It is an amenable number.

634641456 is an abundant number, since it is smaller than the sum of its proper divisors (1004849096).

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

634641456 is a wasteful number, since it uses less digits than its factorization.

634641456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13221708 (or 13221702 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 634641456 is about 25192.0911398796. The cubic root of 634641456 is about 859.3620002194.

The spelling of 634641456 in words is "six hundred thirty-four million, six hundred forty-one thousand, four hundred fifty-six".