22420226 has 8 divisors (see below), whose sum is σ = 33656700. Its totient is φ = 11201328.

The previous prime is 22420213. The next prime is 22420241. The reversal of 22420226 is 62202422.

It is a Cunningham number, because it is equal to 4735²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 22420225 + 1 = 4735^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22420198 and 22420207.

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, 521 + ... + 6716.

Almost surely, 2^22420226 is an apocalyptic number.

22420226 is a deficient number, since it is larger than the sum of its proper divisors (11236474).

22420226 is a wasteful number, since it uses less digits than its factorization.

22420226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8788.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 22420226 is about 4735.0001055966. Note that the first 3 decimals coincide. The cubic root of 22420226 is about 281.9767682017.

Adding to 22420226 its reverse (62202422), we get a palindrome (84622648).

The spelling of 22420226 in words is "twenty-two million, four hundred twenty thousand, two hundred twenty-six".