318980 has 24 divisors (see below), whose sum is σ = 687960. Its totient is φ = 124160.

The previous prime is 318979. The next prime is 319001. The reversal of 318980 is 89813.

It is a happy number.

318980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3136 + 315844 = 56^2 + 562^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626 + ... + 1014.

It is an arithmetic number, because the mean of its divisors is an integer number (28665).

2³¹⁸⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343980).

318980 is an abundant number, since it is smaller than the sum of its proper divisors (368980).

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

318980 is a wasteful number, since it uses less digits than its factorization.

318980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 318980 is about 564.7831442244. The cubic root of 318980 is about 68.3262865362.

The spelling of 318980 in words is "three hundred eighteen thousand, nine hundred eighty".