320663404 has 6 divisors (see below), whose sum is σ = 561160964. Its totient is φ = 160331700.

The previous prime is 320663381. The next prime is 320663429. The reversal of 320663404 is 404366023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40082922 + ... + 40082929.

Almost surely, 2^320663404 is an apocalyptic number.

It is an amenable number.

320663404 is a deficient number, since it is larger than the sum of its proper divisors (240497560).

320663404 is a wasteful number, since it uses less digits than its factorization.

320663404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80165855 (or 80165853 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 320663404 is about 17907.0769250595. The cubic root of 320663404 is about 684.4627211118.

The spelling of 320663404 in words is "three hundred twenty million, six hundred sixty-three thousand, four hundred four".