312394646 has 4 divisors (see below), whose sum is σ = 468591972. Its totient is φ = 156197322.

The previous prime is 312394627. The next prime is 312394681. The reversal of 312394646 is 646493213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78098660 + ... + 78098663.

It is an arithmetic number, because the mean of its divisors is an integer number (117147993).

Almost surely, 2^312394646 is an apocalyptic number.

312394646 is a deficient number, since it is larger than the sum of its proper divisors (156197326).

312394646 is a wasteful number, since it uses less digits than its factorization.

312394646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156197325.

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

The square root of 312394646 is about 17674.6894173561. The cubic root of 312394646 is about 678.5281356429.

The spelling of 312394646 in words is "three hundred twelve million, three hundred ninety-four thousand, six hundred forty-six".