22224426 has 16 divisors (see below), whose sum is σ = 50798784. Its totient is φ = 6349824.

The previous prime is 22224401. The next prime is 22224431. The reversal of 22224426 is 62442222.

It is a super-2 number, since 2×22224426² = 987850222058952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22224396 and 22224405.

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, 264535 + ... + 264618.

It is an arithmetic number, because the mean of its divisors is an integer number (3174924).

Almost surely, 2^22224426 is an apocalyptic number.

22224426 is an abundant number, since it is smaller than the sum of its proper divisors (28574358).

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

22224426 is a wasteful number, since it uses less digits than its factorization.

22224426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529165.

The product of its digits is 3072, while the sum is 24.

The square root of 22224426 is about 4714.2789480471. The cubic root of 22224426 is about 281.1535151509.

Adding to 22224426 its reverse (62442222), we get a palindrome (84666648).

The spelling of 22224426 in words is "twenty-two million, two hundred twenty-four thousand, four hundred twenty-six".