318018 has 8 divisors (see below), whose sum is σ = 636048. Its totient is φ = 106004.

The previous prime is 318007. The next prime is 318023. The reversal of 318018 is 810813.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

318018 is an admirable number.

It is a super-2 number, since 2×318018² = 202270896648, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 317985 and 318003.

It is an unprimeable number.

318018 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, 26496 + ... + 26507.

It is an arithmetic number, because the mean of its divisors is an integer number (79506).

2³¹⁸⁰¹⁸ is an apocalyptic number.

318018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

318018 is a wasteful number, since it uses less digits than its factorization.

318018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53008.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 318018 is about 563.9308468243. The cubic root of 318018 is about 68.2575297949.

The spelling of 318018 in words is "three hundred eighteen thousand, eighteen".