22636249 has 2 divisors, whose sum is σ = 22636250. Its totient is φ = 22636248.

The previous prime is 22636241. The next prime is 22636261. The reversal of 22636249 is 94263622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19963024 + 2673225 = 4468^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 22636249 - 2³ = 22636241 is a prime.

It is not a weakly prime, because it can be changed into another prime (22636241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11318124 + 11318125.

It is an arithmetic number, because the mean of its divisors is an integer number (11318125).

Almost surely, 2^22636249 is an apocalyptic number.

It is an amenable number.

22636249 is a deficient number, since it is larger than the sum of its proper divisors (1).

22636249 is an equidigital number, since it uses as much as digits as its factorization.

22636249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The square root of 22636249 is about 4757.7567192953. The cubic root of 22636249 is about 282.8795076962.

The spelling of 22636249 in words is "twenty-two million, six hundred thirty-six thousand, two hundred forty-nine".