320804668 has 6 divisors (see below), whose sum is σ = 561408176. Its totient is φ = 160402332.

The previous prime is 320804629. The next prime is 320804669. The reversal of 320804668 is 866408023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320804669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40100580 + ... + 40100587.

Almost surely, 2^320804668 is an apocalyptic number.

It is an amenable number.

320804668 is a deficient number, since it is larger than the sum of its proper divisors (240603508).

320804668 is a wasteful number, since it uses less digits than its factorization.

320804668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80201171 (or 80201169 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 320804668 is about 17911.0208530949. The cubic root of 320804668 is about 684.5632166737.

The spelling of 320804668 in words is "three hundred twenty million, eight hundred four thousand, six hundred sixty-eight".