320344 has 16 divisors (see below), whose sum is σ = 627120. Its totient is φ = 153120.

The previous prime is 320339. The next prime is 320377. The reversal of 320344 is 443023.

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 320344.

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, 687 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (39195).

2³²⁰³⁴⁴ is an apocalyptic number.

It is an amenable number.

320344 is a deficient number, since it is larger than the sum of its proper divisors (306776).

320344 is a wasteful number, since it uses less digits than its factorization.

320344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 1766 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 320344 is about 565.9893991940. The cubic root of 320344 is about 68.4235387449.

Adding to 320344 its reverse (443023), we get a palindrome (763367).

The spelling of 320344 in words is "three hundred twenty thousand, three hundred forty-four", and thus it is an iban number.