522028864 has 56 divisors (see below), whose sum is σ = 1186159680. Its totient is φ = 223297536.

The previous prime is 522028847. The next prime is 522028867. The reversal of 522028864 is 468820225.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522028867) 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, 369792 + ... + 371200.

Almost surely, 2^522028864 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 522028864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593079840).

522028864 is an abundant number, since it is smaller than the sum of its proper divisors (664130816).

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

522028864 is a wasteful number, since it uses less digits than its factorization.

522028864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 522028864 is about 22847.9509803396. The cubic root of 522028864 is about 805.1896285649.

The spelling of 522028864 in words is "five hundred twenty-two million, twenty-eight thousand, eight hundred sixty-four".