312856490 has 16 divisors (see below), whose sum is σ = 564682752. Its totient is φ = 124800144.

The previous prime is 312856471. The next prime is 312856501. The reversal of 312856490 is 94658213.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38954 + ... + 46293.

It is an arithmetic number, because the mean of its divisors is an integer number (35292672).

Almost surely, 2^312856490 is an apocalyptic number.

312856490 is a deficient number, since it is larger than the sum of its proper divisors (251826262).

312856490 is a wasteful number, since it uses less digits than its factorization.

312856490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85621.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 312856490 is about 17687.7497155517. The cubic root of 312856490 is about 678.8623494846.

The spelling of 312856490 in words is "three hundred twelve million, eight hundred fifty-six thousand, four hundred ninety".