312994992 has 80 divisors (see below), whose sum is σ = 824197248. Its totient is φ = 102336000.

The previous prime is 312994991. The next prime is 312994993. The reversal of 312994992 is 299499213.

312994992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (312994991) and next prime (312994993).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (312994991) 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, 999828 + ... + 1000140.

Almost surely, 2^312994992 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 312994992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412098624).

312994992 is an abundant number, since it is smaller than the sum of its proper divisors (511202256).

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

312994992 is a wasteful number, since it uses less digits than its factorization.

312994992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 652 counting only the distinct ones).

The product of its digits is 314928, while the sum is 48.

The square root of 312994992 is about 17691.6644779399. The cubic root of 312994992 is about 678.9625124717.

The spelling of 312994992 in words is "three hundred twelve million, nine hundred ninety-four thousand, nine hundred ninety-two".