320402868 has 12 divisors (see below), whose sum is σ = 747606720. Its totient is φ = 106800952.

The previous prime is 320402843. The next prime is 320402881. The reversal of 320402868 is 868204023.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13350108 + ... + 13350131.

It is an arithmetic number, because the mean of its divisors is an integer number (62300560).

Almost surely, 2^320402868 is an apocalyptic number.

It is an amenable number.

320402868 is an abundant number, since it is smaller than the sum of its proper divisors (427203852).

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

320402868 is a wasteful number, since it uses less digits than its factorization.

320402868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26700246 (or 26700244 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 320402868 is about 17899.8007810143. The cubic root of 320402868 is about 684.2772977099.

The spelling of 320402868 in words is "three hundred twenty million, four hundred two thousand, eight hundred sixty-eight".