426442043 has 2 divisors, whose sum is σ = 426442044. Its totient is φ = 426442042.

The previous prime is 426442021. The next prime is 426442063. The reversal of 426442043 is 340244624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426442043 - 2⁶ = 426441979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426441997 and 426442015.

It is not a weakly prime, because it can be changed into another prime (426442063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213221021 + 213221022.

It is an arithmetic number, because the mean of its divisors is an integer number (213221022).

Almost surely, 2^426442043 is an apocalyptic number.

426442043 is a deficient number, since it is larger than the sum of its proper divisors (1).

426442043 is an equidigital number, since it uses as much as digits as its factorization.

426442043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 426442043 is about 20650.4731907044. The cubic root of 426442043 is about 752.6966880620.

Adding to 426442043 its reverse (340244624), we get a palindrome (766686667).

The spelling of 426442043 in words is "four hundred twenty-six million, four hundred forty-two thousand, forty-three".