22262228 has 12 divisors (see below), whose sum is σ = 38994900. Its totient is φ = 11120832.

The previous prime is 22262209. The next prime is 22262249. The reversal of 22262228 is 82226222.

It can be written as a sum of positive squares in 2 ways, for example, as 7300804 + 14961424 = 2702^2 + 3868^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22262197 and 22262206.

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 3 ways as a sum of consecutive naturals, for example, 4400 + ... + 7992.

It is an arithmetic number, because the mean of its divisors is an integer number (3249575).

Almost surely, 2^22262228 is an apocalyptic number.

It is an amenable number.

22262228 is a deficient number, since it is larger than the sum of its proper divisors (16732672).

22262228 is a wasteful number, since it uses less digits than its factorization.

22262228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146 (or 5144 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 22262228 is about 4718.2865534005. The cubic root of 22262228 is about 281.3128315261.

The spelling of 22262228 in words is "twenty-two million, two hundred sixty-two thousand, two hundred twenty-eight".