312787368 has 24 divisors (see below), whose sum is σ = 847132650. Its totient is φ = 104262432.

The previous prime is 312787361. The next prime is 312787421. The reversal of 312787368 is 863787213.

It can be written as a sum of positive squares in only one way, i.e., 265755204 + 47032164 = 16302^2 + 6858^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (312787361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2172063 + ... + 2172206.

Almost surely, 2^312787368 is an apocalyptic number.

It is an amenable number.

312787368 is an abundant number, since it is smaller than the sum of its proper divisors (534345282).

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

312787368 is a wasteful number, since it uses less digits than its factorization.

312787368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344281 (or 4344274 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 312787368 is about 17685.7956564018. The cubic root of 312787368 is about 678.8123502240.

The spelling of 312787368 in words is "three hundred twelve million, seven hundred eighty-seven thousand, three hundred sixty-eight".