634295664 has 40 divisors (see below), whose sum is σ = 1820664720. Its totient is φ = 211431744.

The previous prime is 634295659. The next prime is 634295693. The reversal of 634295664 is 466592436.

634295664 is a `hidden beast` number, since 63 + 4 + 29 + 566 + 4 = 666.

634295664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733707 + ... + 734570.

It is an arithmetic number, because the mean of its divisors is an integer number (45516618).

Almost surely, 2^634295664 is an apocalyptic number.

It is an amenable number.

634295664 is an abundant number, since it is smaller than the sum of its proper divisors (1186369056).

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

634295664 is a wasteful number, since it uses less digits than its factorization.

634295664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468294 (or 1468282 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 634295664 is about 25185.2270984401. The cubic root of 634295664 is about 859.2058939704.

The spelling of 634295664 in words is "six hundred thirty-four million, two hundred ninety-five thousand, six hundred sixty-four".