320812 has 12 divisors (see below), whose sum is σ = 566440. Its totient is φ = 158976.

The previous prime is 320791. The next prime is 320821. The reversal of 320812 is 218023.

It is a happy number.

320812 is nontrivially palindromic in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268 + ... + 844.

2³²⁰⁸¹² is an apocalyptic number.

It is an amenable number.

320812 is a deficient number, since it is larger than the sum of its proper divisors (245628).

320812 is a wasteful number, since it uses less digits than its factorization.

320812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 320812 is about 566.4026836095. The cubic root of 320812 is about 68.4568431871.

Adding to 320812 its reverse (218023), we get a palindrome (538835).

The spelling of 320812 in words is "three hundred twenty thousand, eight hundred twelve".