634148660 has 24 divisors (see below), whose sum is σ = 1340537856. Its totient is φ = 251978400.

The previous prime is 634148651. The next prime is 634148677. The reversal of 634148660 is 66841436.

634148660 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, 101972 + ... + 108011.

It is an arithmetic number, because the mean of its divisors is an integer number (55855744).

Almost surely, 2^634148660 is an apocalyptic number.

It is an amenable number.

634148660 is an abundant number, since it is smaller than the sum of its proper divisors (706389196).

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

634148660 is a wasteful number, since it uses less digits than its factorization.

634148660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210143 (or 210141 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 634148660 is about 25182.3084724177. The cubic root of 634148660 is about 859.1395124865.

The spelling of 634148660 in words is "six hundred thirty-four million, one hundred forty-eight thousand, six hundred sixty".