634046664 has 16 divisors (see below), whose sum is σ = 1585116720. Its totient is φ = 211348880.

The previous prime is 634046641. The next prime is 634046669. The reversal of 634046664 is 466640436.

It is not an unprimeable number, because it can be changed into a prime (634046669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13209282 + ... + 13209329.

It is an arithmetic number, because the mean of its divisors is an integer number (99069795).

Almost surely, 2^634046664 is an apocalyptic number.

It is an amenable number.

634046664 is an abundant number, since it is smaller than the sum of its proper divisors (951070056).

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

634046664 is a wasteful number, since it uses less digits than its factorization.

634046664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26418620 (or 26418616 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The square root of 634046664 is about 25180.2832390742. The cubic root of 634046664 is about 859.0934488962.

The spelling of 634046664 in words is "six hundred thirty-four million, forty-six thousand, six hundred sixty-four".