22223228 has 6 divisors (see below), whose sum is σ = 38890656. Its totient is φ = 11111612.

The previous prime is 22223219. The next prime is 22223231. The reversal of 22223228 is 82232222.

It is a happy number.

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 as a sum of consecutive naturals, namely, 2777900 + ... + 2777907.

It is an arithmetic number, because the mean of its divisors is an integer number (6481776).

Almost surely, 2^22223228 is an apocalyptic number.

It is an amenable number.

22223228 is a deficient number, since it is larger than the sum of its proper divisors (16667428).

22223228 is a wasteful number, since it uses less digits than its factorization.

22223228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555811 (or 5555809 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 22223228 is about 4714.1518855463. The cubic root of 22223228 is about 281.1484632324.

The spelling of 22223228 in words is "twenty-two million, two hundred twenty-three thousand, two hundred twenty-eight".