322320404 has 48 divisors (see below), whose sum is σ = 662973696. Its totient is φ = 134265600.

The previous prime is 322320347. The next prime is 322320421. The reversal of 322320404 is 404023223.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144014 + ... + 146234.

It is an arithmetic number, because the mean of its divisors is an integer number (13811952).

Almost surely, 2^322320404 is an apocalyptic number.

It is an amenable number.

322320404 is an abundant number, since it is smaller than the sum of its proper divisors (340653292).

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

322320404 is a wasteful number, since it uses less digits than its factorization.

322320404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 322320404 is about 17953.2839335872. The cubic root of 322320404 is about 685.6396632006.

Adding to 322320404 its reverse (404023223), we get a palindrome (726343627).

The spelling of 322320404 in words is "three hundred twenty-two million, three hundred twenty thousand, four hundred four".