522490236 has 12 divisors (see below), whose sum is σ = 1219143912. Its totient is φ = 174163408.

The previous prime is 522490217. The next prime is 522490237. The reversal of 522490236 is 632094225.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 522490197 and 522490206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522490237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21770415 + ... + 21770438.

It is an arithmetic number, because the mean of its divisors is an integer number (101595326).

Almost surely, 2^522490236 is an apocalyptic number.

It is an amenable number.

522490236 is an abundant number, since it is smaller than the sum of its proper divisors (696653676).

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

522490236 is a wasteful number, since it uses less digits than its factorization.

522490236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43540860 (or 43540858 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 522490236 is about 22858.0453232554. The cubic root of 522490236 is about 805.4267690670.

The spelling of 522490236 in words is "five hundred twenty-two million, four hundred ninety thousand, two hundred thirty-six".