443440117 has 2 divisors, whose sum is σ = 443440118. Its totient is φ = 443440116.

The previous prime is 443440111. The next prime is 443440139. The reversal of 443440117 is 711044344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 421029361 + 22410756 = 20519^2 + 4734^2 .

It is a cyclic number.

It is not a de Polignac number, because 443440117 - 2⁷ = 443439989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443440111) 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, 221720058 + 221720059.

It is an arithmetic number, because the mean of its divisors is an integer number (221720059).

Almost surely, 2^443440117 is an apocalyptic number.

It is an amenable number.

443440117 is a deficient number, since it is larger than the sum of its proper divisors (1).

443440117 is an equidigital number, since it uses as much as digits as its factorization.

443440117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 443440117 is about 21058.0178791832. The cubic root of 443440117 is about 762.5675608684.

It can be divided in two parts, 4434 and 40117, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 443440117 in words is "four hundred forty-three million, four hundred forty thousand, one hundred seventeen".