634513464 has 96 divisors (see below), whose sum is σ = 1874308800. Its totient is φ = 192741120.

The previous prime is 634513447. The next prime is 634513471. The reversal of 634513464 is 464315436.

634513464 is a `hidden beast` number, since 634 + 5 + 13 + 4 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69654 + ... + 78234.

It is an arithmetic number, because the mean of its divisors is an integer number (19524050).

Almost surely, 2^634513464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634513464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937154400).

634513464 is an abundant number, since it is smaller than the sum of its proper divisors (1239795336).

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

634513464 is a wasteful number, since it uses less digits than its factorization.

634513464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8685 (or 8678 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 634513464 is about 25189.5506907130. The cubic root of 634513464 is about 859.3042254160.

The spelling of 634513464 in words is "six hundred thirty-four million, five hundred thirteen thousand, four hundred sixty-four".