312730168 has 8 divisors (see below), whose sum is σ = 586369080. Its totient is φ = 156365080.

The previous prime is 312730141. The next prime is 312730169. The reversal of 312730168 is 861037213.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312730169) by changing a digit.

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, 19545628 + ... + 19545643.

It is an arithmetic number, because the mean of its divisors is an integer number (73296135).

Almost surely, 2^312730168 is an apocalyptic number.

It is an amenable number.

312730168 is a deficient number, since it is larger than the sum of its proper divisors (273638912).

312730168 is a wasteful number, since it uses less digits than its factorization.

312730168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39091277 (or 39091273 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 312730168 is about 17684.1784655098. The cubic root of 312730168 is about 678.7709691480.

The spelling of 312730168 in words is "three hundred twelve million, seven hundred thirty thousand, one hundred sixty-eight".