312484990 has 32 divisors (see below), whose sum is σ = 596450304. Its totient is φ = 117465600.

The previous prime is 312484981. The next prime is 312485009. The reversal of 312484990 is 99484213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194872 + ... + 196468.

It is an arithmetic number, because the mean of its divisors is an integer number (18639072).

Almost surely, 2^312484990 is an apocalyptic number.

312484990 is a deficient number, since it is larger than the sum of its proper divisors (283965314).

312484990 is a wasteful number, since it uses less digits than its factorization.

312484990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 312484990 is about 17677.2449776542. The cubic root of 312484990 is about 678.5935390659.

The spelling of 312484990 in words is "three hundred twelve million, four hundred eighty-four thousand, nine hundred ninety".