544442209 has 2 divisors, whose sum is σ = 544442210. Its totient is φ = 544442208.

The previous prime is 544442203. The next prime is 544442231. The reversal of 544442209 is 902244445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479478609 + 64963600 = 21897^2 + 8060^2 .

It is a cyclic number.

It is not a de Polignac number, because 544442209 - 2⁷ = 544442081 is a prime.

It is not a weakly prime, because it can be changed into another prime (544442203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272221104 + 272221105.

It is an arithmetic number, because the mean of its divisors is an integer number (272221105).

Almost surely, 2^544442209 is an apocalyptic number.

It is an amenable number.

544442209 is a deficient number, since it is larger than the sum of its proper divisors (1).

544442209 is an equidigital number, since it uses as much as digits as its factorization.

544442209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 544442209 is about 23333.2854309032. The cubic root of 544442209 is about 816.5521546692.

The spelling of 544442209 in words is "five hundred forty-four million, four hundred forty-two thousand, two hundred nine".