42305423 has 2 divisors, whose sum is σ = 42305424. Its totient is φ = 42305422.

The previous prime is 42305383. The next prime is 42305443. The reversal of 42305423 is 32450324.

42305423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42305423 - 2⁸ = 42305167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42305443) 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, 21152711 + 21152712.

It is an arithmetic number, because the mean of its divisors is an integer number (21152712).

Almost surely, 2^42305423 is an apocalyptic number.

42305423 is a deficient number, since it is larger than the sum of its proper divisors (1).

42305423 is an equidigital number, since it uses as much as digits as its factorization.

42305423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 42305423 is about 6504.2619104707. The cubic root of 42305423 is about 348.4432163782.

Adding to 42305423 its reverse (32450324), we get a palindrome (74755747).

The spelling of 42305423 in words is "forty-two million, three hundred five thousand, four hundred twenty-three".