4400004043 has 2 divisors, whose sum is σ = 4400004044. Its totient is φ = 4400004042.

The previous prime is 4400004041. The next prime is 4400004047. The reversal of 4400004043 is 3404000044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4400004043 - 2¹ = 4400004041 is a prime.

Together with 4400004041, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4400004043.

It is not a weakly prime, because it can be changed into another prime (4400004041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200002021 + 2200002022.

It is an arithmetic number, because the mean of its divisors is an integer number (2200002022).

Almost surely, 2^4400004043 is an apocalyptic number.

4400004043 is a deficient number, since it is larger than the sum of its proper divisors (1).

4400004043 is an equidigital number, since it uses as much as digits as its factorization.

4400004043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 4400004043 is about 66332.5262823601. The cubic root of 4400004043 is about 1638.6430430975.

Adding to 4400004043 its reverse (3404000044), we get a palindrome (7804004087).

The spelling of 4400004043 in words is "four billion, four hundred million, four thousand, forty-three".