22242228 has 24 divisors (see below), whose sum is σ = 52298400. Its totient is φ = 7356960.

The previous prime is 22242211. The next prime is 22242251. The reversal of 22242228 is 82224222.

It is a junction number, because it is equal to n+sod(n) for n = 22242198 and 22242207.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5503 + ... + 8646.

It is an arithmetic number, because the mean of its divisors is an integer number (2179100).

Almost surely, 2^22242228 is an apocalyptic number.

It is an amenable number.

22242228 is an abundant number, since it is smaller than the sum of its proper divisors (30056172).

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

22242228 is a wasteful number, since it uses less digits than its factorization.

22242228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287 (or 14285 counting only the distinct ones).

The product of its digits is 2048, while the sum is 24.

The square root of 22242228 is about 4716.1666637217. The cubic root of 22242228 is about 281.2285640947.

The spelling of 22242228 in words is "twenty-two million, two hundred forty-two thousand, two hundred twenty-eight".