441404189 has 2 divisors, whose sum is σ = 441404190. Its totient is φ = 441404188.

The previous prime is 441404179. The next prime is 441404221. The reversal of 441404189 is 981404144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387499225 + 53904964 = 19685^2 + 7342^2 .

It is a cyclic number.

It is not a de Polignac number, because 441404189 - 2⁸ = 441403933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441404149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220702094 + 220702095.

It is an arithmetic number, because the mean of its divisors is an integer number (220702095).

Almost surely, 2^441404189 is an apocalyptic number.

It is an amenable number.

441404189 is a deficient number, since it is larger than the sum of its proper divisors (1).

441404189 is an equidigital number, since it uses as much as digits as its factorization.

441404189 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 35.

The square root of 441404189 is about 21009.6213435654. The cubic root of 441404189 is about 761.3987335784.

The spelling of 441404189 in words is "four hundred forty-one million, four hundred four thousand, one hundred eighty-nine".