522785928 has 32 divisors (see below), whose sum is σ = 1493674560. Its totient is φ = 149367360.

The previous prime is 522785917. The next prime is 522785947. The reversal of 522785928 is 829587225.

It is a happy number.

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, 1555743 + ... + 1556078.

It is an arithmetic number, because the mean of its divisors is an integer number (46677330).

Almost surely, 2^522785928 is an apocalyptic number.

It is an amenable number.

522785928 is an abundant number, since it is smaller than the sum of its proper divisors (970888632).

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

522785928 is a wasteful number, since it uses less digits than its factorization.

522785928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111837 (or 3111833 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The square root of 522785928 is about 22864.5124155316. The cubic root of 522785928 is about 805.5786783424.

It can be divided in two parts, 52 and 2785928, that added together give a triangular number (2785980 = T₂₃₆₀).

The spelling of 522785928 in words is "five hundred twenty-two million, seven hundred eighty-five thousand, nine hundred twenty-eight".