522786444 has 24 divisors (see below), whose sum is σ = 1284037440. Its totient is φ = 165090384.

The previous prime is 522786443. The next prime is 522786457. The reversal of 522786444 is 444687225.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 522786396 and 522786405.

It is not an unprimeable number, because it can be changed into a prime (522786443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146234 + ... + 1146689.

It is an arithmetic number, because the mean of its divisors is an integer number (53501560).

Almost surely, 2^522786444 is an apocalyptic number.

It is an amenable number.

522786444 is an abundant number, since it is smaller than the sum of its proper divisors (761250996).

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

522786444 is a wasteful number, since it uses less digits than its factorization.

522786444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292949 (or 2292947 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 522786444 is about 22864.5236993907. The cubic root of 522786444 is about 805.5789433830.

The spelling of 522786444 in words is "five hundred twenty-two million, seven hundred eighty-six thousand, four hundred forty-four".