440240400043 has 2 divisors, whose sum is σ = 440240400044. Its totient is φ = 440240400042.

The previous prime is 440240399983. The next prime is 440240400191. The reversal of 440240400043 is 340004042044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440240400043 - 2⁹ = 440240399531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440240399990 and 440240400017.

It is not a weakly prime, because it can be changed into another prime (440240400643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220120200021 + 220120200022.

It is an arithmetic number, because the mean of its divisors is an integer number (220120200022).

Almost surely, 2^440240400043 is an apocalyptic number.

440240400043 is a deficient number, since it is larger than the sum of its proper divisors (1).

440240400043 is an equidigital number, since it uses as much as digits as its factorization.

440240400043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 440240400043 its reverse (340004042044), we get a palindrome (780244442087).

The spelling of 440240400043 in words is "four hundred forty billion, two hundred forty million, four hundred thousand, forty-three".