44444009 has 2 divisors, whose sum is σ = 44444010. Its totient is φ = 44444008.

The previous prime is 44443991. The next prime is 44444047. The reversal of 44444009 is 90044444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37699600 + 6744409 = 6140^2 + 2597^2 .

It is a cyclic number.

It is not a de Polignac number, because 44444009 - 2²⁰ = 43395433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44444209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22222004 + 22222005.

It is an arithmetic number, because the mean of its divisors is an integer number (22222005).

Almost surely, 2^44444009 is an apocalyptic number.

It is an amenable number.

44444009 is a deficient number, since it is larger than the sum of its proper divisors (1).

44444009 is an equidigital number, since it uses as much as digits as its factorization.

44444009 is an evil number, because the sum of its binary digits is even.

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

The square root of 44444009 is about 6666.6340082533. The cubic root of 44444009 is about 354.2183662352.

The spelling of 44444009 in words is "forty-four million, four hundred forty-four thousand, nine".