312856868 has 12 divisors (see below), whose sum is σ = 547632540. Its totient is φ = 156390432.

The previous prime is 312856829. The next prime is 312856877. The reversal of 312856868 is 868658213.

It can be written as a sum of positive squares in 2 ways, for example, as 125933284 + 186923584 = 11222^2 + 13672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17630 + ... + 30602.

It is an arithmetic number, because the mean of its divisors is an integer number (45636045).

Almost surely, 2^312856868 is an apocalyptic number.

It is an amenable number.

312856868 is a deficient number, since it is larger than the sum of its proper divisors (234775672).

312856868 is a wasteful number, since it uses less digits than its factorization.

312856868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19006 (or 19004 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 312856868 is about 17687.7604009100. The cubic root of 312856868 is about 678.8626228899.

The spelling of 312856868 in words is "three hundred twelve million, eight hundred fifty-six thousand, eight hundred sixty-eight".