312122868 has 24 divisors (see below), whose sum is σ = 728578368. Its totient is φ = 103999296.

The previous prime is 312122851. The next prime is 312122869. The reversal of 312122868 is 868221213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312122869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46705 + ... + 52967.

It is an arithmetic number, because the mean of its divisors is an integer number (30357432).

Almost surely, 2^312122868 is an apocalyptic number.

It is an amenable number.

312122868 is an abundant number, since it is smaller than the sum of its proper divisors (416455500).

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

312122868 is a wasteful number, since it uses less digits than its factorization.

312122868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423 (or 10421 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 312122868 is about 17666.9994056716. Note that the first 3 decimals coincide. The cubic root of 312122868 is about 678.3313092617.

The spelling of 312122868 in words is "three hundred twelve million, one hundred twenty-two thousand, eight hundred sixty-eight".