634564330 has 16 divisors (see below), whose sum is σ = 1168779744. Its totient is φ = 247922640.

The previous prime is 634564309. The next prime is 634564361. The reversal of 634564330 is 33465436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737436 + ... + 738295.

It is an arithmetic number, because the mean of its divisors is an integer number (73048734).

Almost surely, 2^634564330 is an apocalyptic number.

634564330 is a deficient number, since it is larger than the sum of its proper divisors (534215414).

634564330 is a wasteful number, since it uses less digits than its factorization.

634564330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475781.

The product of its (nonzero) digits is 77760, while the sum is 34.

The square root of 634564330 is about 25190.5603351732. The cubic root of 634564330 is about 859.3271869465.

The spelling of 634564330 in words is "six hundred thirty-four million, five hundred sixty-four thousand, three hundred thirty".