320676 has 12 divisors (see below), whose sum is σ = 748272. Its totient is φ = 106888.

The previous prime is 320669. The next prime is 320687. The reversal of 320676 is 676023.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320676.

It is an unprimeable number.

320676 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13350 + ... + 13373.

It is an arithmetic number, because the mean of its divisors is an integer number (62356).

2³²⁰⁶⁷⁶ is an apocalyptic number.

It is an amenable number.

320676 is an abundant number, since it is smaller than the sum of its proper divisors (427596).

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

320676 is a wasteful number, since it uses less digits than its factorization.

320676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26730 (or 26728 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 320676 is about 566.2826149548. The cubic root of 320676 is about 68.4471683136.

Adding to 320676 its reverse (676023), we get a palindrome (996699).

The spelling of 320676 in words is "three hundred twenty thousand, six hundred seventy-six".