518680 has 16 divisors (see below), whose sum is σ = 1167120. Its totient is φ = 207456.

The previous prime is 518657. The next prime is 518689. The reversal of 518680 is 86815.

It is a happy number.

518680 is nontrivially palindromic in base 15.

518680 is an undulating number in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518689) 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, 6444 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (72945).

2⁵¹⁸⁶⁸⁰ is an apocalyptic number.

It is an amenable number.

518680 is an abundant number, since it is smaller than the sum of its proper divisors (648440).

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

518680 is a wasteful number, since it uses less digits than its factorization.

518680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12978 (or 12974 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 518680 is about 720.1944181955. The cubic root of 518680 is about 80.3464144643.

The spelling of 518680 in words is "five hundred eighteen thousand, six hundred eighty".