518205044 has 12 divisors (see below), whose sum is σ = 1036410144. Its totient is φ = 222087864.

The previous prime is 518204969. The next prime is 518205047. The reversal of 518205044 is 440502815.

518205044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 518204998 and 518205016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518205047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9253634 + ... + 9253689.

It is an arithmetic number, because the mean of its divisors is an integer number (86367512).

Almost surely, 2^518205044 is an apocalyptic number.

It is an amenable number.

518205044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

518205044 is a wasteful number, since it uses less digits than its factorization.

518205044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18507334 (or 18507332 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 518205044 is about 22764.1174658716. The cubic root of 518205044 is about 803.2188253347.

Adding to 518205044 its reverse (440502815), we get a palindrome (958707859).

The spelling of 518205044 in words is "five hundred eighteen million, two hundred five thousand, forty-four".