312427880 has 16 divisors (see below), whose sum is σ = 702962820. Its totient is φ = 124971136.

The previous prime is 312427877. The next prime is 312427891. The reversal of 312427880 is 88724213.

It can be written as a sum of positive squares in 2 ways, for example, as 311946244 + 481636 = 17662^2 + 694^2 .

It is a super-2 number, since 2×312427880² = 195222360402588800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312427880.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3905309 + ... + 3905388.

Almost surely, 2^312427880 is an apocalyptic number.

It is an amenable number.

312427880 is an abundant number, since it is smaller than the sum of its proper divisors (390534940).

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

312427880 is a wasteful number, since it uses less digits than its factorization.

312427880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7810708 (or 7810704 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 312427880 is about 17675.6295503159. The cubic root of 312427880 is about 678.5521964527.

The spelling of 312427880 in words is "three hundred twelve million, four hundred twenty-seven thousand, eight hundred eighty".