312492172 has 24 divisors (see below), whose sum is σ = 556627680. Its totient is φ = 153479040.

The previous prime is 312492161. The next prime is 312492217. The reversal of 312492172 is 271294213.

It is a super-2 number, since 2×312492172² = 195302715122555168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53097 + ... + 58687.

It is an arithmetic number, because the mean of its divisors is an integer number (23192820).

Almost surely, 2^312492172 is an apocalyptic number.

It is an amenable number.

312492172 is a deficient number, since it is larger than the sum of its proper divisors (244135508).

312492172 is a wasteful number, since it uses less digits than its factorization.

312492172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841 (or 5839 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 312492172 is about 17677.4481190018. The cubic root of 312492172 is about 678.5987378451.

The spelling of 312492172 in words is "three hundred twelve million, four hundred ninety-two thousand, one hundred seventy-two".