634914920 has 16 divisors (see below), whose sum is σ = 1428558660. Its totient is φ = 253965952.

The previous prime is 634914899. The next prime is 634914953. The reversal of 634914920 is 29419436.

It can be written as a sum of positive squares in 2 ways, for example, as 622901764 + 12013156 = 24958^2 + 3466^2 .

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 3 ways as a sum of consecutive naturals, for example, 7936397 + ... + 7936476.

Almost surely, 2^634914920 is an apocalyptic number.

It is an amenable number.

634914920 is an abundant number, since it is smaller than the sum of its proper divisors (793643740).

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

634914920 is a wasteful number, since it uses less digits than its factorization.

634914920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15872884 (or 15872880 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 634914920 is about 25197.5181317526. The cubic root of 634914920 is about 859.4854141680.

The spelling of 634914920 in words is "six hundred thirty-four million, nine hundred fourteen thousand, nine hundred twenty".