518044 has 12 divisors (see below), whose sum is σ = 920584. Its totient is φ = 255024.

The previous prime is 518017. The next prime is 518047. The reversal of 518044 is 440815.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518047) by changing a digit.

518044 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699 + ... + 1234.

2⁵¹⁸⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

518044 is a deficient number, since it is larger than the sum of its proper divisors (402540).

518044 is a wasteful number, since it uses less digits than its factorization.

518044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 518044 is about 719.7527353196. The cubic root of 518044 is about 80.3135610543.

Adding to 518044 its reverse (440815), we get a palindrome (958859).

The spelling of 518044 in words is "five hundred eighteen thousand, forty-four".