44222609 has 2 divisors, whose sum is σ = 44222610. Its totient is φ = 44222608.

The previous prime is 44222603. The next prime is 44222611. The reversal of 44222609 is 90622244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44182609 + 40000 = 6647^2 + 200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44222609 is a prime.

Together with 44222611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44222603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22111304 + 22111305.

It is an arithmetic number, because the mean of its divisors is an integer number (22111305).

Almost surely, 2^44222609 is an apocalyptic number.

It is an amenable number.

44222609 is a deficient number, since it is larger than the sum of its proper divisors (1).

44222609 is an equidigital number, since it uses as much as digits as its factorization.

44222609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 44222609 is about 6650.0081954837. The cubic root of 44222609 is about 353.6292014719.

The spelling of 44222609 in words is "forty-four million, two hundred twenty-two thousand, six hundred nine".