318844 has 12 divisors (see below), whose sum is σ = 565600. Its totient is φ = 157248.

The previous prime is 318841. The next prime is 318863. The reversal of 318844 is 448813.

It is a super-2 number, since 2×318844² = 203322992672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189 + ... + 820.

2³¹⁸⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

318844 is a deficient number, since it is larger than the sum of its proper divisors (246756).

318844 is a wasteful number, since it uses less digits than its factorization.

318844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1090 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 318844 is about 564.6627311945. The cubic root of 318844 is about 68.3165746463.

The spelling of 318844 in words is "three hundred eighteen thousand, eight hundred forty-four".