1312867938 has 32 divisors (see below), whose sum is σ = 2662704576. Its totient is φ = 431482688.

The previous prime is 1312867921. The next prime is 1312867943. The reversal of 1312867938 is 8397682131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275020 + ... + 279752.

It is an arithmetic number, because the mean of its divisors is an integer number (83209518).

Almost surely, 2^1312867938 is an apocalyptic number.

1312867938 is an abundant number, since it is smaller than the sum of its proper divisors (1349836638).

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

1312867938 is a wasteful number, since it uses less digits than its factorization.

1312867938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378.

The product of its digits is 435456, while the sum is 48.

The square root of 1312867938 is about 36233.5195364734. The cubic root of 1312867938 is about 1094.9820859854.

The spelling of 1312867938 in words is "one billion, three hundred twelve million, eight hundred sixty-seven thousand, nine hundred thirty-eight".