440424043 has 2 divisors, whose sum is σ = 440424044. Its totient is φ = 440424042.

The previous prime is 440424041. The next prime is 440424059. The reversal of 440424043 is 340424044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440424043 - 2¹ = 440424041 is a prime.

Together with 440424041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 440423999 and 440424017.

It is not a weakly prime, because it can be changed into another prime (440424041) 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, 220212021 + 220212022.

It is an arithmetic number, because the mean of its divisors is an integer number (220212022).

Almost surely, 2^440424043 is an apocalyptic number.

440424043 is a deficient number, since it is larger than the sum of its proper divisors (1).

440424043 is an equidigital number, since it uses as much as digits as its factorization.

440424043 is an odious number, because the sum of its binary digits is odd.

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

The square root of 440424043 is about 20986.2822577035. The cubic root of 440424043 is about 760.8347493649.

Adding to 440424043 its reverse (340424044), we get a palindrome (780848087).

Subtracting from 440424043 its reverse (340424044), we obtain a palindrome (99999999).

The spelling of 440424043 in words is "four hundred forty million, four hundred twenty-four thousand, forty-three".