200441809 has 2 divisors, whose sum is σ = 200441810. Its totient is φ = 200441808.

The previous prime is 200441777. The next prime is 200441819. The reversal of 200441809 is 908144002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116316225 + 84125584 = 10785^2 + 9172^2 .

It is a cyclic number.

It is not a de Polignac number, because 200441809 - 2⁵ = 200441777 is a prime.

It is not a weakly prime, because it can be changed into another prime (200441819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100220904 + 100220905.

It is an arithmetic number, because the mean of its divisors is an integer number (100220905).

Almost surely, 2^200441809 is an apocalyptic number.

It is an amenable number.

200441809 is a deficient number, since it is larger than the sum of its proper divisors (1).

200441809 is an equidigital number, since it uses as much as digits as its factorization.

200441809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 200441809 is about 14157.7473137502. The cubic root of 200441809 is about 585.2338500631.

The spelling of 200441809 in words is "two hundred million, four hundred forty-one thousand, eight hundred nine".