522490866 has 16 divisors (see below), whose sum is σ = 1048086624. Its totient is φ = 173646144.

The previous prime is 522490849. The next prime is 522490889. The reversal of 522490866 is 668094225.

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, 127180 + ... + 131223.

It is an arithmetic number, because the mean of its divisors is an integer number (65505414).

Almost surely, 2^522490866 is an apocalyptic number.

522490866 is an abundant number, since it is smaller than the sum of its proper divisors (525595758).

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

522490866 is a wasteful number, since it uses less digits than its factorization.

522490866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258745.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 522490866 is about 22858.0591039572. The cubic root of 522490866 is about 805.4270927851.

The spelling of 522490866 in words is "five hundred twenty-two million, four hundred ninety thousand, eight hundred sixty-six".