522128880 has 360 divisors, whose sum is σ = 2173530528. Its totient is φ = 109983744.

The previous prime is 522128851. The next prime is 522128921. The reversal of 522128880 is 88821225.

It is a happy number.

522128880 is a `hidden beast` number, since 522 + 128 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 851454 + ... + 852066.

Almost surely, 2^522128880 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 522128880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086765264).

522128880 is an abundant number, since it is smaller than the sum of its proper divisors (1651401648).

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

522128880 is a wasteful number, since it uses less digits than its factorization.

522128880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 522128880 is about 22850.1396057004. The cubic root of 522128880 is about 805.2410476267.

The spelling of 522128880 in words is "five hundred twenty-two million, one hundred twenty-eight thousand, eight hundred eighty".