312726668 has 24 divisors (see below), whose sum is σ = 561699600. Its totient is φ = 152290368.

The previous prime is 312726649. The next prime is 312726697. The reversal of 312726668 is 866627213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19646 + ... + 31802.

It is an arithmetic number, because the mean of its divisors is an integer number (23404150).

Almost surely, 2^312726668 is an apocalyptic number.

It is an amenable number.

312726668 is a deficient number, since it is larger than the sum of its proper divisors (248972932).

312726668 is a wasteful number, since it uses less digits than its factorization.

312726668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12329 (or 12327 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 312726668 is about 17684.0795067202. The cubic root of 312726668 is about 678.7684369254.

The spelling of 312726668 in words is "three hundred twelve million, seven hundred twenty-six thousand, six hundred sixty-eight".