440842043 has 2 divisors, whose sum is σ = 440842044. Its totient is φ = 440842042.

The previous prime is 440841997. The next prime is 440842057. The reversal of 440842043 is 340248044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 440842043 - 2²⁸ = 172406587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440841997 and 440842015.

It is not a weakly prime, because it can be changed into another prime (440842243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220421021 + 220421022.

It is an arithmetic number, because the mean of its divisors is an integer number (220421022).

Almost surely, 2^440842043 is an apocalyptic number.

440842043 is a deficient number, since it is larger than the sum of its proper divisors (1).

440842043 is an equidigital number, since it uses as much as digits as its factorization.

440842043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 440842043 is about 20996.2387822200. The cubic root of 440842043 is about 761.0753722912.

The spelling of 440842043 in words is "four hundred forty million, eight hundred forty-two thousand, forty-three".