22406229 has 12 divisors (see below), whose sum is σ = 32621056. Its totient is φ = 14819112.

The previous prime is 22406203. The next prime is 22406231. The reversal of 22406229 is 92260422.

It is not a de Polignac number, because 22406229 - 2⁸ = 22405973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22406239) 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 in 11 ways as a sum of consecutive naturals, for example, 8659 + ... + 10944.

Almost surely, 2^22406229 is an apocalyptic number.

It is an amenable number.

22406229 is a deficient number, since it is larger than the sum of its proper divisors (10214827).

22406229 is a wasteful number, since it uses less digits than its factorization.

22406229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19736 (or 19733 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 22406229 is about 4733.5218389694. The cubic root of 22406229 is about 281.9180763989.

The spelling of 22406229 in words is "twenty-two million, four hundred six thousand, two hundred twenty-nine".