22441999 has 2 divisors, whose sum is σ = 22442000. Its totient is φ = 22441998.

The previous prime is 22441981. The next prime is 22442029. The reversal of 22441999 is 99914422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22441999 - 2⁷ = 22441871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22411999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11220999 + 11221000.

It is an arithmetic number, because the mean of its divisors is an integer number (11221000).

Almost surely, 2^22441999 is an apocalyptic number.

22441999 is a deficient number, since it is larger than the sum of its proper divisors (1).

22441999 is an equidigital number, since it uses as much as digits as its factorization.

22441999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 22441999 is about 4737.2987028474. The cubic root of 22441999 is about 282.0680175618.

The spelling of 22441999 in words is "twenty-two million, four hundred forty-one thousand, nine hundred ninety-nine".