522039418 has 24 divisors (see below), whose sum is σ = 820946196. Its totient is φ = 248952000.

The previous prime is 522039409. The next prime is 522039443. The reversal of 522039418 is 814930225.

It can be written as a sum of positive squares in 2 ways, for example, as 519520849 + 2518569 = 22793^2 + 1587^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 635448 + ... + 636268.

Almost surely, 2^522039418 is an apocalyptic number.

522039418 is a deficient number, since it is larger than the sum of its proper divisors (298906778).

522039418 is a wasteful number, since it uses less digits than its factorization.

522039418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 522039418 is about 22848.1819408022. The cubic root of 522039418 is about 805.1950547744.

The spelling of 522039418 in words is "five hundred twenty-two million, thirty-nine thousand, four hundred eighteen".