22805226 has 20 divisors (see below), whose sum is σ = 51100962. Its totient is φ = 7601688.

The previous prime is 22805221. The next prime is 22805227. The reversal of 22805226 is 62250822.

It can be written as a sum of positive squares in only one way, i.e., 16040025 + 6765201 = 4005^2 + 2601^2 .

It is a super-2 number, since 2×22805226² = 1040156665822152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 22805226.

It is not an unprimeable number, because it can be changed into a prime (22805221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 70225 + ... + 70548.

Almost surely, 2^22805226 is an apocalyptic number.

22805226 is an abundant number, since it is smaller than the sum of its proper divisors (28295736).

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

22805226 is a wasteful number, since it uses less digits than its factorization.

22805226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140787 (or 140778 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 22805226 is about 4775.4817558022. The cubic root of 22805226 is about 283.5816511265.

The spelling of 22805226 in words is "twenty-two million, eight hundred five thousand, two hundred twenty-six".