312494636 has 12 divisors (see below), whose sum is σ = 547213128. Its totient is φ = 156148032.

The previous prime is 312494627. The next prime is 312494647. The reversal of 312494636 is 636494213.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 312494636.

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, 17501 + ... + 30516.

It is an arithmetic number, because the mean of its divisors is an integer number (45601094).

Almost surely, 2^312494636 is an apocalyptic number.

It is an amenable number.

312494636 is a deficient number, since it is larger than the sum of its proper divisors (234718492).

312494636 is a wasteful number, since it uses less digits than its factorization.

312494636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49648 (or 49646 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 312494636 is about 17677.5178121817. The cubic root of 312494636 is about 678.6005214236.

The spelling of 312494636 in words is "three hundred twelve million, four hundred ninety-four thousand, six hundred thirty-six".