22232228 has 12 divisors (see below), whose sum is σ = 39640860. Its totient is φ = 10906272.

The previous prime is 22232219. The next prime is 22232233. The reversal of 22232228 is 82223222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11682724 + 10549504 = 3418^2 + 3248^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52223 + ... + 52646.

It is an arithmetic number, because the mean of its divisors is an integer number (3303405).

Almost surely, 2^22232228 is an apocalyptic number.

It is an amenable number.

22232228 is a deficient number, since it is larger than the sum of its proper divisors (17408632).

22232228 is a wasteful number, since it uses less digits than its factorization.

22232228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104926 (or 104924 counting only the distinct ones).

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

The square root of 22232228 is about 4715.1063614727. The cubic root of 22232228 is about 281.1864114349.

The spelling of 22232228 in words is "twenty-two million, two hundred thirty-two thousand, two hundred twenty-eight".