312716388 has 24 divisors (see below), whose sum is σ = 735245280. Its totient is φ = 103442560.

The previous prime is 312716359. The next prime is 312716399. The reversal of 312716388 is 883617213.

312716388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 97893 + ... + 101036.

It is an arithmetic number, because the mean of its divisors is an integer number (30635220).

Almost surely, 2^312716388 is an apocalyptic number.

It is an amenable number.

312716388 is an abundant number, since it is smaller than the sum of its proper divisors (422528892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312716388 is a wasteful number, since it uses less digits than its factorization.

312716388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199067 (or 199065 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 312716388 is about 17683.7888474162. The cubic root of 312716388 is about 678.7609993164.

The spelling of 312716388 in words is "three hundred twelve million, seven hundred sixteen thousand, three hundred eighty-eight".