320958 has 24 divisors (see below), whose sum is σ = 759096. Its totient is φ = 97200.

The previous prime is 320953. The next prime is 321007. The reversal of 320958 is 859023.

320958 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 613 + ... + 1008.

It is an arithmetic number, because the mean of its divisors is an integer number (31629).

2³²⁰⁹⁵⁸ is an apocalyptic number.

320958 is an abundant number, since it is smaller than the sum of its proper divisors (438138).

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

320958 is a wasteful number, since it uses less digits than its factorization.

320958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 320958 is about 566.5315525194. The cubic root of 320958 is about 68.4672264057.

The spelling of 320958 in words is "three hundred twenty thousand, nine hundred fifty-eight".