22244441 has 2 divisors, whose sum is σ = 22244442. Its totient is φ = 22244440.

The previous prime is 22244429. The next prime is 22244477. The reversal of 22244441 is 14444222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18619225 + 3625216 = 4315^2 + 1904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22244441 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22244401) 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, 11122220 + 11122221.

It is an arithmetic number, because the mean of its divisors is an integer number (11122221).

Almost surely, 2^22244441 is an apocalyptic number.

It is an amenable number.

22244441 is a deficient number, since it is larger than the sum of its proper divisors (1).

22244441 is an equidigital number, since it uses as much as digits as its factorization.

22244441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 23.

The square root of 22244441 is about 4716.4012763971. The cubic root of 22244441 is about 281.2378907708.

Adding to 22244441 its reverse (14444222), we get a palindrome (36688663).

The spelling of 22244441 in words is "twenty-two million, two hundred forty-four thousand, four hundred forty-one".