312487340 has 36 divisors (see below), whose sum is σ = 721309008. Its totient is φ = 113630880.

The previous prime is 312487337. The next prime is 312487367. The reversal of 312487340 is 43784213.

It is a junction number, because it is equal to n+sod(n) for n = 312487297 and 312487306.

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, 62144 + ... + 66983.

Almost surely, 2^312487340 is an apocalyptic number.

It is an amenable number.

312487340 is an abundant number, since it is smaller than the sum of its proper divisors (408821668).

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

312487340 is a wasteful number, since it uses less digits than its factorization.

312487340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129158 (or 129145 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 312487340 is about 17677.3114471630. The cubic root of 312487340 is about 678.5952401511.

The spelling of 312487340 in words is "three hundred twelve million, four hundred eighty-seven thousand, three hundred forty".