312663632 has 20 divisors (see below), whose sum is σ = 608392980. Its totient is φ = 155659008.

The previous prime is 312663553. The next prime is 312663661. The reversal of 312663632 is 236366213.

It can be written as a sum of positive squares in 2 ways, for example, as 50353216 + 262310416 = 7096^2 + 16196^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 38207 + ... + 45662.

It is an arithmetic number, because the mean of its divisors is an integer number (30419649).

Almost surely, 2^312663632 is an apocalyptic number.

It is an amenable number.

312663632 is a deficient number, since it is larger than the sum of its proper divisors (295729348).

312663632 is a wasteful number, since it uses less digits than its factorization.

312663632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84110 (or 84104 counting only the distinct ones).

The product of its digits is 23328, while the sum is 32.

The square root of 312663632 is about 17682.2971358362. The cubic root of 312663632 is about 678.7228276370.

The spelling of 312663632 in words is "three hundred twelve million, six hundred sixty-three thousand, six hundred thirty-two".