312107840 has 56 divisors (see below), whose sum is σ = 810780192. Its totient is φ = 113492480.

The previous prime is 312107833. The next prime is 312107843. The reversal of 312107840 is 48701213.

It is a super-2 number, since 2×312107840² = 194822607578931200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312107843) 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 7 ways as a sum of consecutive naturals, for example, 40814 + ... + 47853.

Almost surely, 2^312107840 is an apocalyptic number.

It is an amenable number.

312107840 is an abundant number, since it is smaller than the sum of its proper divisors (498672352).

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

312107840 is a wasteful number, since it uses less digits than its factorization.

312107840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88695 (or 88685 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 312107840 is about 17666.5740878077. The cubic root of 312107840 is about 678.3204223882.

The spelling of 312107840 in words is "three hundred twelve million, one hundred seven thousand, eight hundred forty".