244226009 has 2 divisors, whose sum is σ = 244226010. Its totient is φ = 244226008.

The previous prime is 244225991. The next prime is 244226039. The reversal of 244226009 is 900622442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150136009 + 94090000 = 12253^2 + 9700^2 .

It is a cyclic number.

It is not a de Polignac number, because 244226009 - 2²⁰ = 243177433 is a prime.

It is not a weakly prime, because it can be changed into another prime (244226039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122113004 + 122113005.

It is an arithmetic number, because the mean of its divisors is an integer number (122113005).

Almost surely, 2^244226009 is an apocalyptic number.

It is an amenable number.

244226009 is a deficient number, since it is larger than the sum of its proper divisors (1).

244226009 is an equidigital number, since it uses as much as digits as its factorization.

244226009 is an odious number, because the sum of its binary digits is odd.

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

The square root of 244226009 is about 15627.7320491490. The cubic root of 244226009 is about 625.0728525210.

The spelling of 244226009 in words is "two hundred forty-four million, two hundred twenty-six thousand, nine".