22203228 has 12 divisors (see below), whose sum is σ = 51807560. Its totient is φ = 7401072.

The previous prime is 22203227. The next prime is 22203239. The reversal of 22203228 is 82230222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925123 + ... + 925146.

Almost surely, 2^22203228 is an apocalyptic number.

It is an amenable number.

22203228 is an abundant number, since it is smaller than the sum of its proper divisors (29604332).

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

22203228 is a wasteful number, since it uses less digits than its factorization.

22203228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850276 (or 1850274 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 22203228 is about 4712.0301357271. The cubic root of 22203228 is about 281.0640971970.

The spelling of 22203228 in words is "twenty-two million, two hundred three thousand, two hundred twenty-eight".