518417944 has 16 divisors (see below), whose sum is σ = 1060400520. Its totient is φ = 235644480.

The previous prime is 518417923. The next prime is 518417993. The reversal of 518417944 is 449714815.

It is a super-2 number, since 2×518417944² = 537514329322374272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 518417944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2945469 + ... + 2945644.

Almost surely, 2^518417944 is an apocalyptic number.

It is an amenable number.

518417944 is an abundant number, since it is smaller than the sum of its proper divisors (541982576).

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

518417944 is a wasteful number, since it uses less digits than its factorization.

518417944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891130 (or 5891126 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 518417944 is about 22768.7932047353. The cubic root of 518417944 is about 803.3288087454.

The spelling of 518417944 in words is "five hundred eighteen million, four hundred seventeen thousand, nine hundred forty-four".