320318 has 4 divisors (see below), whose sum is σ = 480480. Its totient is φ = 160158.

The previous prime is 320317. The next prime is 320329. The reversal of 320318 is 813023.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×320318² = 205207242248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320296 and 320305.

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 320318.

It is not an unprimeable number, because it can be changed into a prime (320317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80078 + ... + 80081.

It is an arithmetic number, because the mean of its divisors is an integer number (120120).

2³²⁰³¹⁸ is an apocalyptic number.

320318 is a deficient number, since it is larger than the sum of its proper divisors (160162).

320318 is a wasteful number, since it uses less digits than its factorization.

320318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160161.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 320318 is about 565.9664300999. The cubic root of 320318 is about 68.4216875473.

The spelling of 320318 in words is "three hundred twenty thousand, three hundred eighteen".