320504 has 8 divisors (see below), whose sum is σ = 600960. Its totient is φ = 160248.

The previous prime is 320483. The next prime is 320513. The reversal of 320504 is 405023.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20024 + ... + 20039.

It is an arithmetic number, because the mean of its divisors is an integer number (75120).

2³²⁰⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

320504 is a deficient number, since it is larger than the sum of its proper divisors (280456).

320504 is a wasteful number, since it uses less digits than its factorization.

320504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40069 (or 40065 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 320504 is about 566.1307269527. The cubic root of 320504 is about 68.4349285259.

Adding to 320504 its reverse (405023), we get a palindrome (725527).

The spelling of 320504 in words is "three hundred twenty thousand, five hundred four".