518994 has 32 divisors (see below), whose sum is σ = 1319040. Its totient is φ = 148176.

The previous prime is 518989. The next prime is 519011. The reversal of 518994 is 499815.

It is an unprimeable number.

518994 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 15 ways as a sum of consecutive naturals, for example, 309 + ... + 1064.

It is an arithmetic number, because the mean of its divisors is an integer number (41220).

2⁵¹⁸⁹⁹⁴ is an apocalyptic number.

518994 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

518994 is an abundant number, since it is smaller than the sum of its proper divisors (800046).

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

518994 is a wasteful number, since it uses less digits than its factorization.

518994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1385 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 518994 is about 720.4123819036. The cubic root of 518994 is about 80.3626246419.

It can be divided in two parts, 51 and 8994, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 518994 in words is "five hundred eighteen thousand, nine hundred ninety-four".