320066404 has 24 divisors (see below), whose sum is σ = 644745920. Its totient is φ = 136182816.

The previous prime is 320066399. The next prime is 320066407. The reversal of 320066404 is 404660023.

320066404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (320066407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37227 + ... + 45010.

Almost surely, 2^320066404 is an apocalyptic number.

It is an amenable number.

320066404 is an abundant number, since it is smaller than the sum of its proper divisors (324679516).

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

320066404 is a wasteful number, since it uses less digits than its factorization.

320066404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82387 (or 82385 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 320066404 is about 17890.3997719447. The cubic root of 320066404 is about 684.0376875829.

The spelling of 320066404 in words is "three hundred twenty million, sixty-six thousand, four hundred four".