312947944 has 16 divisors (see below), whose sum is σ = 588009600. Its totient is φ = 156145392.

The previous prime is 312947933. The next prime is 312948001. The reversal of 312947944 is 449749213.

It is a self number, because there is not a number n which added to its sum of digits gives 312947944.

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, 37002 + ... + 44665.

It is an arithmetic number, because the mean of its divisors is an integer number (36750600).

Almost surely, 2^312947944 is an apocalyptic number.

It is an amenable number.

312947944 is a deficient number, since it is larger than the sum of its proper divisors (275061656).

312947944 is a wasteful number, since it uses less digits than its factorization.

312947944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82152 (or 82148 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 312947944 is about 17690.3347622367. The cubic root of 312947944 is about 678.9284912363.

The spelling of 312947944 in words is "three hundred twelve million, nine hundred forty-seven thousand, nine hundred forty-four".