1313630688 has 48 divisors (see below), whose sum is σ = 3481785216. Its totient is φ = 433622400.

The previous prime is 1313630663. The next prime is 1313630753. The reversal of 1313630688 is 8860363131.

It is a tau number, because it is divible by the number of its divisors (48).

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, 56538 + ... + 76313.

It is an arithmetic number, because the mean of its divisors is an integer number (72537192).

Almost surely, 2^1313630688 is an apocalyptic number.

It is an amenable number.

1313630688 is an abundant number, since it is smaller than the sum of its proper divisors (2168154528).

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

1313630688 is a wasteful number, since it uses less digits than its factorization.

1313630688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132967 (or 132959 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1313630688 is about 36244.0434830332. The cubic root of 1313630688 is about 1095.1940991589.

The spelling of 1313630688 in words is "one billion, three hundred thirteen million, six hundred thirty thousand, six hundred eighty-eight".