22452239 has 2 divisors, whose sum is σ = 22452240. Its totient is φ = 22452238.

The previous prime is 22452233. The next prime is 22452251. The reversal of 22452239 is 93225422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22452239 - 2⁸ = 22451983 is a prime.

It is a super-2 number, since 2×22452239² = 1008206072226242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22452233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11226119 + 11226120.

It is an arithmetic number, because the mean of its divisors is an integer number (11226120).

Almost surely, 2^22452239 is an apocalyptic number.

22452239 is a deficient number, since it is larger than the sum of its proper divisors (1).

22452239 is an equidigital number, since it uses as much as digits as its factorization.

22452239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 22452239 is about 4738.3793642975. The cubic root of 22452239 is about 282.1109123934.

The spelling of 22452239 in words is "twenty-two million, four hundred fifty-two thousand, two hundred thirty-nine".