312447912 has 96 divisors (see below), whose sum is σ = 912319200. Its totient is φ = 88910976.

The previous prime is 312447911. The next prime is 312447931. The reversal of 312447912 is 219744213.

It is not an unprimeable number, because it can be changed into a prime (312447911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457123 + ... + 457805.

It is an arithmetic number, because the mean of its divisors is an integer number (9503325).

Almost surely, 2^312447912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312447912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456159600).

312447912 is an abundant number, since it is smaller than the sum of its proper divisors (599871288).

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

312447912 is a wasteful number, since it uses less digits than its factorization.

312447912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1084 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 312447912 is about 17676.1961971460. The cubic root of 312447912 is about 678.5666984311.

The spelling of 312447912 in words is "three hundred twelve million, four hundred forty-seven thousand, nine hundred twelve".