312295216 has 20 divisors (see below), whose sum is σ = 612733600. Its totient is φ = 154170432.

The previous prime is 312295211. The next prime is 312295261. The reversal of 312295216 is 612592213.

It is not an unprimeable number, because it can be changed into a prime (312295211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122271 + ... + 124798.

It is an arithmetic number, because the mean of its divisors is an integer number (30636680).

Almost surely, 2^312295216 is an apocalyptic number.

It is an amenable number.

312295216 is a deficient number, since it is larger than the sum of its proper divisors (300438384).

312295216 is a wasteful number, since it uses less digits than its factorization.

312295216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247156 (or 247150 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 312295216 is about 17671.8764142351. The cubic root of 312295216 is about 678.4561399451.

The spelling of 312295216 in words is "three hundred twelve million, two hundred ninety-five thousand, two hundred sixteen".