518447044 has 12 divisors (see below), whose sum is σ = 928382224. Its totient is φ = 253194984.

The previous prime is 518447029. The next prime is 518447047. The reversal of 518447044 is 440744815.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 518446994 and 518447012.

It is not an unprimeable number, because it can be changed into a prime (518447047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506942 + ... + 1507285.

Almost surely, 2^518447044 is an apocalyptic number.

It is an amenable number.

518447044 is a deficient number, since it is larger than the sum of its proper divisors (409935180).

518447044 is a wasteful number, since it uses less digits than its factorization.

518447044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014274 (or 3014272 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 37.

The square root of 518447044 is about 22769.4322283187. The cubic root of 518447044 is about 803.3438393664.

The spelling of 518447044 in words is "five hundred eighteen million, four hundred forty-seven thousand, forty-four".