312540332 has 48 divisors (see below), whose sum is σ = 615085632. Its totient is φ = 137998080.

The previous prime is 312540301. The next prime is 312540373. The reversal of 312540332 is 233045213.

It is a junction number, because it is equal to n+sod(n) for n = 312540298 and 312540307.

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, 116033 + ... + 118695.

It is an arithmetic number, because the mean of its divisors is an integer number (12814284).

Almost surely, 2^312540332 is an apocalyptic number.

It is an amenable number.

312540332 is a deficient number, since it is larger than the sum of its proper divisors (302545300).

312540332 is a wasteful number, since it uses less digits than its factorization.

312540332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778 (or 2776 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 312540332 is about 17678.8102540867. The cubic root of 312540332 is about 678.6335969972.

Adding to 312540332 its reverse (233045213), we get a palindrome (545585545).

The spelling of 312540332 in words is "three hundred twelve million, five hundred forty thousand, three hundred thirty-two".