312732320 has 48 divisors (see below), whose sum is σ = 740198088. Its totient is φ = 124861440.

The previous prime is 312732319. The next prime is 312732331. The reversal of 312732320 is 23237213.

It can be written as a sum of positive squares in 4 ways, for example, as 246992656 + 65739664 = 15716^2 + 8108^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104282 + ... + 107238.

Almost surely, 2^312732320 is an apocalyptic number.

It is an amenable number.

312732320 is an abundant number, since it is smaller than the sum of its proper divisors (427465768).

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

312732320 is a wasteful number, since it uses less digits than its factorization.

312732320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633 (or 3625 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 312732320 is about 17684.2393107535. The cubic root of 312732320 is about 678.7725260938.

Adding to 312732320 its reverse (23237213), we get a palindrome (335969533).

The spelling of 312732320 in words is "three hundred twelve million, seven hundred thirty-two thousand, three hundred twenty".