22689228 has 12 divisors (see below), whose sum is σ = 52941560. Its totient is φ = 7563072.

The previous prime is 22689221. The next prime is 22689229. The reversal of 22689228 is 82298622.

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

It is not an unprimeable number, because it can be changed into a prime (22689221) 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, 945373 + ... + 945396.

Almost surely, 2^22689228 is an apocalyptic number.

It is an amenable number.

22689228 is an abundant number, since it is smaller than the sum of its proper divisors (30252332).

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

22689228 is a wasteful number, since it uses less digits than its factorization.

22689228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890776 (or 1890774 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 22689228 is about 4763.3211103179. The cubic root of 22689228 is about 283.1000241602.

The spelling of 22689228 in words is "twenty-two million, six hundred eighty-nine thousand, two hundred twenty-eight".