312218974 has 24 divisors (see below), whose sum is σ = 518404320. Its totient is φ = 140530368.

The previous prime is 312218947. The next prime is 312218983. The reversal of 312218974 is 479812213.

312218974 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×312218974² = 194961375451225352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9307 + ... + 26665.

It is an arithmetic number, because the mean of its divisors is an integer number (21600180).

Almost surely, 2^312218974 is an apocalyptic number.

312218974 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

312218974 is a deficient number, since it is larger than the sum of its proper divisors (206185346).

312218974 is a wasteful number, since it uses less digits than its factorization.

312218974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17424 (or 17401 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 312218974 is about 17669.7191262340. The cubic root of 312218974 is about 678.4009239611.

The spelling of 312218974 in words is "three hundred twelve million, two hundred eighteen thousand, nine hundred seventy-four".