1312372860 has 24 divisors (see below), whose sum is σ = 3674644176. Its totient is φ = 349966080.

The previous prime is 1312372837. The next prime is 1312372871. The reversal of 1312372860 is 682732131.

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, 10936381 + ... + 10936500.

It is an arithmetic number, because the mean of its divisors is an integer number (153110174).

Almost surely, 2^1312372860 is an apocalyptic number.

1312372860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312372860 is an abundant number, since it is smaller than the sum of its proper divisors (2362271316).

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

1312372860 is a wasteful number, since it uses less digits than its factorization.

1312372860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21872893 (or 21872891 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1312372860 is about 36226.6871242735. The cubic root of 1312372860 is about 1094.8444306835.

The spelling of 1312372860 in words is "one billion, three hundred twelve million, three hundred seventy-two thousand, eight hundred sixty".