44004404209 has 2 divisors, whose sum is σ = 44004404210. Its totient is φ = 44004404208.

The previous prime is 44004404207. The next prime is 44004404261. The reversal of 44004404209 is 90240440044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44004291984 + 112225 = 209772^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 44004404209 - 2¹ = 44004404207 is a prime.

Together with 44004404207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44004404201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22002202104 + 22002202105.

It is an arithmetic number, because the mean of its divisors is an integer number (22002202105).

Almost surely, 2^44004404209 is an apocalyptic number.

It is an amenable number.

44004404209 is a deficient number, since it is larger than the sum of its proper divisors (1).

44004404209 is an equidigital number, since it uses as much as digits as its factorization.

44004404209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

The spelling of 44004404209 in words is "forty-four billion, four million, four hundred four thousand, two hundred nine".