528222240 has 576 divisors, whose sum is σ = 2311545600. Its totient is φ = 106831872.

The previous prime is 528222239. The next prime is 528222251. The reversal of 528222240 is 42222825.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3800091 + ... + 3800229.

It is an arithmetic number, because the mean of its divisors is an integer number (4013100).

Almost surely, 2^528222240 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 528222240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155772800).

528222240 is an abundant number, since it is smaller than the sum of its proper divisors (1783323360).

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

528222240 is a wasteful number, since it uses less digits than its factorization.

528222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 528222240 is about 22983.0859546755. The cubic root of 528222240 is about 808.3613878621.

The spelling of 528222240 in words is "five hundred twenty-eight million, two hundred twenty-two thousand, two hundred forty".