528228 has 48 divisors (see below), whose sum is σ = 1408960. Its totient is φ = 171072.

The previous prime is 528223. The next prime is 528247. The reversal of 528228 is 822825.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (528223) by changing a digit.

528228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7200 + ... + 7272.

2⁵²⁸²²⁸ 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 528228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704480).

528228 is an abundant number, since it is smaller than the sum of its proper divisors (880732).

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

528228 is a wasteful number, since it uses less digits than its factorization.

528228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 145 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 528228 is about 726.7929553869. The cubic root of 528228 is about 80.8364326111.

The spelling of 528228 in words is "five hundred twenty-eight thousand, two hundred twenty-eight".