312492912 has 80 divisors (see below), whose sum is σ = 862578720. Its totient is φ = 97140736.

The previous prime is 312492907. The next prime is 312492913. The reversal of 312492912 is 219294213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312492913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90514 + ... + 93902.

It is an arithmetic number, because the mean of its divisors is an integer number (10782234).

Almost surely, 2^312492912 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 312492912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431289360).

312492912 is an abundant number, since it is smaller than the sum of its proper divisors (550085808).

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

312492912 is a wasteful number, since it uses less digits than its factorization.

312492912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530 (or 3524 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 312492912 is about 17677.4690496123. The cubic root of 312492912 is about 678.5992734987.

The spelling of 312492912 in words is "three hundred twelve million, four hundred ninety-two thousand, nine hundred twelve".