312904532 has 6 divisors (see below), whose sum is σ = 547582938. Its totient is φ = 156452264.

The previous prime is 312904511. The next prime is 312904549. The reversal of 312904532 is 235409213.

It can be written as a sum of positive squares in only one way, i.e., 283787716 + 29116816 = 16846^2 + 5396^2 .

It is a super-2 number, since 2×312904532² = 195818492292278048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312904495 and 312904504.

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 as a sum of consecutive naturals, namely, 39113063 + ... + 39113070.

It is an arithmetic number, because the mean of its divisors is an integer number (91263823).

Almost surely, 2^312904532 is an apocalyptic number.

It is an amenable number.

312904532 is a deficient number, since it is larger than the sum of its proper divisors (234678406).

312904532 is a wasteful number, since it uses less digits than its factorization.

312904532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78226137 (or 78226135 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 312904532 is about 17689.1077219853. The cubic root of 312904532 is about 678.8970962314.

The spelling of 312904532 in words is "three hundred twelve million, nine hundred four thousand, five hundred thirty-two".