634413660 has 48 divisors (see below), whose sum is σ = 1777561632. Its totient is φ = 169062400.

The previous prime is 634413649. The next prime is 634413673. The reversal of 634413660 is 66314436.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 122320 + ... + 127400.

It is an arithmetic number, because the mean of its divisors is an integer number (37032534).

Almost surely, 2^634413660 is an apocalyptic number.

634413660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

634413660 is an abundant number, since it is smaller than the sum of its proper divisors (1143147972).

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

634413660 is a wasteful number, since it uses less digits than its factorization.

634413660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7174 (or 7172 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 634413660 is about 25187.5695532538. The cubic root of 634413660 is about 859.2591691113.

The spelling of 634413660 in words is "six hundred thirty-four million, four hundred thirteen thousand, six hundred sixty".