44402209 has 2 divisors, whose sum is σ = 44402210. Its totient is φ = 44402208.

The previous prime is 44402201. The next prime is 44402231. The reversal of 44402209 is 90220444.

44402209 is nontrivially palindromic in base 14.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41990400 + 2411809 = 6480^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 44402209 - 2³ = 44402201 is a prime.

It is not a weakly prime, because it can be changed into another prime (44402201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22201104 + 22201105.

It is an arithmetic number, because the mean of its divisors is an integer number (22201105).

Almost surely, 2^44402209 is an apocalyptic number.

It is an amenable number.

44402209 is a deficient number, since it is larger than the sum of its proper divisors (1).

44402209 is an equidigital number, since it uses as much as digits as its factorization.

44402209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 44402209 is about 6663.4982554211. The cubic root of 44402209 is about 354.1072828571.

The spelling of 44402209 in words is "forty-four million, four hundred two thousand, two hundred nine".