320308 has 6 divisors (see below), whose sum is σ = 560546. Its totient is φ = 160152.

The previous prime is 320303. The next prime is 320317. The reversal of 320308 is 803023.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 268324 + 51984 = 518^2 + 228^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320291 and 320300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320303) by changing a digit.

320308 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 as a sum of consecutive naturals, namely, 40035 + ... + 40042.

2³²⁰³⁰⁸ is an apocalyptic number.

It is an amenable number.

320308 is a deficient number, since it is larger than the sum of its proper divisors (240238).

320308 is a wasteful number, since it uses less digits than its factorization.

320308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80081 (or 80079 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 320308 is about 565.9575955847. The cubic root of 320308 is about 68.4209755216.

The spelling of 320308 in words is "three hundred twenty thousand, three hundred eight".