440143043 has 2 divisors, whose sum is σ = 440143044. Its totient is φ = 440143042.

The previous prime is 440143031. The next prime is 440143057. The reversal of 440143043 is 340341044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440143043 - 2⁴ = 440143027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (440143013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220071521 + 220071522.

It is an arithmetic number, because the mean of its divisors is an integer number (220071522).

Almost surely, 2^440143043 is an apocalyptic number.

440143043 is a deficient number, since it is larger than the sum of its proper divisors (1).

440143043 is an equidigital number, since it uses as much as digits as its factorization.

440143043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 440143043 is about 20979.5863400592. The cubic root of 440143043 is about 760.6729053023.

Adding to 440143043 its reverse (340341044), we get a palindrome (780484087).

The spelling of 440143043 in words is "four hundred forty million, one hundred forty-three thousand, forty-three".