312800992 has 24 divisors (see below), whose sum is σ = 703802736. Its totient is φ = 134057472.

The previous prime is 312800987. The next prime is 312800993. The reversal of 312800992 is 299008213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312800993) 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, 697993 + ... + 698440.

It is an arithmetic number, because the mean of its divisors is an integer number (29325114).

Almost surely, 2^312800992 is an apocalyptic number.

312800992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312800992 is an abundant number, since it is smaller than the sum of its proper divisors (391001744).

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

312800992 is a wasteful number, since it uses less digits than its factorization.

312800992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396450 (or 1396442 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 312800992 is about 17686.1808200640. The cubic root of 312800992 is about 678.8222057000.

The spelling of 312800992 in words is "three hundred twelve million, eight hundred thousand, nine hundred ninety-two".