440410949809 has 2 divisors, whose sum is σ = 440410949810. Its totient is φ = 440410949808.

The previous prime is 440410949789. The next prime is 440410949821. The reversal of 440410949809 is 908949014044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403047219600 + 37363730209 = 634860^2 + 193297^2 .

It is a cyclic number.

It is not a de Polignac number, because 440410949809 - 2⁵ = 440410949777 is a prime.

It is not a weakly prime, because it can be changed into another prime (440410949899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220205474904 + 220205474905.

It is an arithmetic number, because the mean of its divisors is an integer number (220205474905).

Almost surely, 2^440410949809 is an apocalyptic number.

It is an amenable number.

440410949809 is a deficient number, since it is larger than the sum of its proper divisors (1).

440410949809 is an equidigital number, since it uses as much as digits as its factorization.

440410949809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 440410949809 in words is "four hundred forty billion, four hundred ten million, nine hundred forty-nine thousand, eight hundred nine".