22407226 has 4 divisors (see below), whose sum is σ = 33610842. Its totient is φ = 11203612.

The previous prime is 22407223. The next prime is 22407233. The reversal of 22407226 is 62270422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15642025 + 6765201 = 3955^2 + 2601^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22407226.

It is not an unprimeable number, because it can be changed into a prime (22407223) by changing a digit.

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 as a sum of consecutive naturals, namely, 5601805 + ... + 5601808.

Almost surely, 2^22407226 is an apocalyptic number.

22407226 is a deficient number, since it is larger than the sum of its proper divisors (11203616).

22407226 is a wasteful number, since it uses less digits than its factorization.

22407226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11203615.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 22407226 is about 4733.6271505052. The cubic root of 22407226 is about 281.9222577980.

Adding to 22407226 its reverse (62270422), we get a palindrome (84677648).

The spelling of 22407226 in words is "twenty-two million, four hundred seven thousand, two hundred twenty-six".