22444229 has 2 divisors, whose sum is σ = 22444230. Its totient is φ = 22444228.

The previous prime is 22444223. The next prime is 22444241. The reversal of 22444229 is 92244422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13432225 + 9012004 = 3665^2 + 3002^2 .

It is a cyclic number.

It is not a de Polignac number, because 22444229 - 2¹² = 22440133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22444223) 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, 11222114 + 11222115.

It is an arithmetic number, because the mean of its divisors is an integer number (11222115).

Almost surely, 2^22444229 is an apocalyptic number.

It is an amenable number.

22444229 is a deficient number, since it is larger than the sum of its proper divisors (1).

22444229 is an equidigital number, since it uses as much as digits as its factorization.

22444229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 29.

The square root of 22444229 is about 4737.5340632021. The cubic root of 22444229 is about 282.0773600279.

The spelling of 22444229 in words is "twenty-two million, four hundred forty-four thousand, two hundred twenty-nine".