22284228 has 24 divisors (see below), whose sum is σ = 52073280. Its totient is φ = 7417120.

The previous prime is 22284211. The next prime is 22284239. The reversal of 22284228 is 82248222.

It is a junction number, because it is equal to n+sod(n) for n = 22284195 and 22284204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13993 + ... + 15503.

It is an arithmetic number, because the mean of its divisors is an integer number (2169720).

Almost surely, 2^22284228 is an apocalyptic number.

It is an amenable number.

22284228 is an abundant number, since it is smaller than the sum of its proper divisors (29789052).

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

22284228 is a wasteful number, since it uses less digits than its factorization.

22284228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747 (or 2745 counting only the distinct ones).

The product of its digits is 8192, while the sum is 30.

The square root of 22284228 is about 4720.6173325107. The cubic root of 22284228 is about 281.4054674287.

The spelling of 22284228 in words is "twenty-two million, two hundred eighty-four thousand, two hundred twenty-eight".