22644226 has 16 divisors (see below), whose sum is σ = 37503648. Its totient is φ = 10168000.

The previous prime is 22644217. The next prime is 22644247. The reversal of 22644226 is 62244622.

It is a super-2 number, since 2×22644226² = 1025521942278152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22644194 and 22644203.

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, 4375 + ... + 8026.

It is an arithmetic number, because the mean of its divisors is an integer number (2343978).

Almost surely, 2^22644226 is an apocalyptic number.

22644226 is a deficient number, since it is larger than the sum of its proper divisors (14859422).

22644226 is a wasteful number, since it uses less digits than its factorization.

22644226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12497.

The product of its digits is 9216, while the sum is 28.

The square root of 22644226 is about 4758.5949607001. The cubic root of 22644226 is about 282.9127326475.

Adding to 22644226 its reverse (62244622), we get a palindrome (84888848).

The spelling of 22644226 in words is "twenty-two million, six hundred forty-four thousand, two hundred twenty-six".