312943212 has 36 divisors (see below), whose sum is σ = 793994656. Its totient is φ = 103926240.

The previous prime is 312943199. The next prime is 312943219. The reversal of 312943212 is 212349213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (312943219) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6283 + ... + 25794.

Almost surely, 2^312943212 is an apocalyptic number.

It is an amenable number.

312943212 is an abundant number, since it is smaller than the sum of its proper divisors (481051444).

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

312943212 is a wasteful number, since it uses less digits than its factorization.

312943212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32358 (or 32353 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 312943212 is about 17690.2010163819. The cubic root of 312943212 is about 678.9250692552.

The spelling of 312943212 in words is "three hundred twelve million, nine hundred forty-three thousand, two hundred twelve".