440544043 has 2 divisors, whose sum is σ = 440544044. Its totient is φ = 440544042.

The previous prime is 440544029. The next prime is 440544059. The reversal of 440544043 is 340445044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440544043 - 2²¹ = 438446891 is a prime.

It is not a weakly prime, because it can be changed into another prime (440544023) 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, 220272021 + 220272022.

It is an arithmetic number, because the mean of its divisors is an integer number (220272022).

Almost surely, 2^440544043 is an apocalyptic number.

440544043 is a deficient number, since it is larger than the sum of its proper divisors (1).

440544043 is an equidigital number, since it uses as much as digits as its factorization.

440544043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 440544043 is about 20989.1410734218. The cubic root of 440544043 is about 760.9038432912.

Adding to 440544043 its reverse (340445044), we get a palindrome (780989087).

The spelling of 440544043 in words is "four hundred forty million, five hundred forty-four thousand, forty-three".