440444444043 has 4 divisors (see below), whose sum is σ = 587259258728. Its totient is φ = 293629629360.

The previous prime is 440444443969. The next prime is 440444444047. The reversal of 440444444043 is 340444444044.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 440444444043 - 2²¹ = 440442346891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440444443992 and 440444444010.

It is not an unprimeable number, because it can be changed into a prime (440444444047) 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 in 3 ways as a sum of consecutive naturals, for example, 73407407338 + ... + 73407407343.

It is an arithmetic number, because the mean of its divisors is an integer number (146814814682).

Almost surely, 2^440444444043 is an apocalyptic number.

440444444043 is a deficient number, since it is larger than the sum of its proper divisors (146814814685).

440444444043 is a wasteful number, since it uses less digits than its factorization.

440444444043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146814814684.

The product of its (nonzero) digits is 786432, while the sum is 39.

Adding to 440444444043 its reverse (340444444044), we get a palindrome (780888888087).

Subtracting from 440444444043 its reverse (340444444044), we obtain a palindrome (99999999999).

The spelling of 440444444043 in words is "four hundred forty billion, four hundred forty-four million, four hundred forty-four thousand, forty-three".