320804 has 24 divisors (see below), whose sum is σ = 641088. Its totient is φ = 139040.

The previous prime is 320791. The next prime is 320821. The reversal of 320804 is 408023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854 + ... + 1170.

It is an arithmetic number, because the mean of its divisors is an integer number (26712).

2³²⁰⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

320804 is a deficient number, since it is larger than the sum of its proper divisors (320284).

320804 is a wasteful number, since it uses less digits than its factorization.

320804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 320804 is about 566.3956214520. The cubic root of 320804 is about 68.4562741526.

Adding to 320804 its reverse (408023), we get a palindrome (728827).

The spelling of 320804 in words is "three hundred twenty thousand, eight hundred four".