313245820 has 24 divisors (see below), whose sum is σ = 680500800. Its totient is φ = 120977472.

The previous prime is 313245787. The next prime is 313245833. The reversal of 313245820 is 28542313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269460 + ... + 270619.

It is an arithmetic number, because the mean of its divisors is an integer number (28354200).

Almost surely, 2^313245820 is an apocalyptic number.

It is an amenable number.

313245820 is an abundant number, since it is smaller than the sum of its proper divisors (367254980).

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

313245820 is a wasteful number, since it uses less digits than its factorization.

313245820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540117 (or 540115 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 313245820 is about 17698.7519333991. The cubic root of 313245820 is about 679.1438330905.

The spelling of 313245820 in words is "three hundred thirteen million, two hundred forty-five thousand, eight hundred twenty".