2228528 has 20 divisors (see below), whose sum is σ = 4458048. Its totient is φ = 1078080.

The previous prime is 2228521. The next prime is 2228531. The reversal of 2228528 is 8258222.

2228528 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2228528.

It is not an unprimeable number, because it can be changed into a prime (2228521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751 + ... + 2742.

2^2228528 is an apocalyptic number.

It is an amenable number.

2228528 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2228528 is a wasteful number, since it uses less digits than its factorization.

2228528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532 (or 4526 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 2228528 is about 1492.8255088924. The cubic root of 2228528 is about 130.6189028999.

The spelling of 2228528 in words is "two million, two hundred twenty-eight thousand, five hundred twenty-eight".