528747228 has 72 divisors (see below), whose sum is σ = 1360719360. Its totient is φ = 173093760.

The previous prime is 528747223. The next prime is 528747283. The reversal of 528747228 is 822747825.

It is a super-2 number, since 2×528747228² = 559147262235367968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528747223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 497818 + ... + 498878.

It is an arithmetic number, because the mean of its divisors is an integer number (18898880).

Almost surely, 2^528747228 is an apocalyptic number.

It is an amenable number.

528747228 is an abundant number, since it is smaller than the sum of its proper divisors (831972132).

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

528747228 is a wasteful number, since it uses less digits than its factorization.

528747228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1302 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 528747228 is about 22994.5042999409. The cubic root of 528747228 is about 808.6291031530.

The spelling of 528747228 in words is "five hundred twenty-eight million, seven hundred forty-seven thousand, two hundred twenty-eight".