313142840 has 32 divisors (see below), whose sum is σ = 723617280. Its totient is φ = 121871232.

The previous prime is 313142833. The next prime is 313142887. The reversal of 313142840 is 48241313.

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 in 7 ways as a sum of consecutive naturals, for example, 104312 + ... + 107271.

It is an arithmetic number, because the mean of its divisors is an integer number (22613040).

Almost surely, 2^313142840 is an apocalyptic number.

It is an amenable number.

313142840 is an abundant number, since it is smaller than the sum of its proper divisors (410474440).

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

313142840 is a wasteful number, since it uses less digits than its factorization.

313142840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211631 (or 211627 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 313142840 is about 17695.8424495699. The cubic root of 313142840 is about 679.0694017728.

The spelling of 313142840 in words is "three hundred thirteen million, one hundred forty-two thousand, eight hundred forty".