312740068 has 24 divisors (see below), whose sum is σ = 569503872. Its totient is φ = 150150624.

The previous prime is 312740063. The next prime is 312740081. The reversal of 312740068 is 860047213.

It is not an unprimeable number, because it can be changed into a prime (312740063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5730 + ... + 25657.

It is an arithmetic number, because the mean of its divisors is an integer number (23729328).

Almost surely, 2^312740068 is an apocalyptic number.

It is an amenable number.

312740068 is a deficient number, since it is larger than the sum of its proper divisors (256763804).

312740068 is a wasteful number, since it uses less digits than its factorization.

312740068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31491 (or 31489 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 312740068 is about 17684.4583745163. The cubic root of 312740068 is about 678.7781316184.

The spelling of 312740068 in words is "three hundred twelve million, seven hundred forty thousand, sixty-eight".