518306044 has 24 divisors (see below), whose sum is σ = 919976960. Its totient is φ = 255466224.

The previous prime is 518306039. The next prime is 518306053. The reversal of 518306044 is 440603815.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 518305997 and 518306015.

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, 335137 + ... + 336679.

Almost surely, 2^518306044 is an apocalyptic number.

It is an amenable number.

518306044 is a deficient number, since it is larger than the sum of its proper divisors (401670916).

518306044 is a wasteful number, since it uses less digits than its factorization.

518306044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 518306044 is about 22766.3357613824. The cubic root of 518306044 is about 803.2710053436.

Adding to 518306044 its reverse (440603815), we get a palindrome (958909859).

The spelling of 518306044 in words is "five hundred eighteen million, three hundred six thousand, forty-four".