440040004043 has 2 divisors, whose sum is σ = 440040004044. Its totient is φ = 440040004042.

The previous prime is 440040003979. The next prime is 440040004049. The reversal of 440040004043 is 340400040044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 440040004043 - 2⁶ = 440040003979 is a prime.

It is not a weakly prime, because it can be changed into another prime (440040004049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220020002021 + 220020002022.

It is an arithmetic number, because the mean of its divisors is an integer number (220020002022).

Almost surely, 2^440040004043 is an apocalyptic number.

440040004043 is a deficient number, since it is larger than the sum of its proper divisors (1).

440040004043 is an equidigital number, since it uses as much as digits as its factorization.

440040004043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 440040004043 its reverse (340400040044), we get a palindrome (780440044087).

The spelling of 440040004043 in words is "four hundred forty billion, forty million, four thousand, forty-three".