522906828 has 48 divisors (see below), whose sum is σ = 1291530240. Its totient is φ = 164203200.

The previous prime is 522906781. The next prime is 522906841. The reversal of 522906828 is 828609225.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 522906828.

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 15 ways as a sum of consecutive naturals, for example, 34933 + ... + 47603.

It is an arithmetic number, because the mean of its divisors is an integer number (26906880).

Almost surely, 2^522906828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522906828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645765120).

522906828 is an abundant number, since it is smaller than the sum of its proper divisors (768623412).

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

522906828 is a wasteful number, since it uses less digits than its factorization.

522906828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12878 (or 12876 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 522906828 is about 22867.1560977748. The cubic root of 522906828 is about 805.6407732013.

The spelling of 522906828 in words is "five hundred twenty-two million, nine hundred six thousand, eight hundred twenty-eight".