423142443 has 12 divisors (see below), whose sum is σ = 611983008. Its totient is φ = 281736240.

The previous prime is 423142441. The next prime is 423142487. The reversal of 423142443 is 344241324.

It is a happy number.

423142443 is a `hidden beast` number, since 4 + 231 + 424 + 4 + 3 = 666.

It is not a de Polignac number, because 423142443 - 2¹ = 423142441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423142441) 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 in 11 ways as a sum of consecutive naturals, for example, 22323 + ... + 36668.

It is an arithmetic number, because the mean of its divisors is an integer number (50998584).

Almost surely, 2^423142443 is an apocalyptic number.

423142443 is a deficient number, since it is larger than the sum of its proper divisors (188840565).

423142443 is a wasteful number, since it uses less digits than its factorization.

423142443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59794 (or 59791 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 423142443 is about 20570.4264175539. The cubic root of 423142443 is about 750.7503264300.

Adding to 423142443 its reverse (344241324), we get a palindrome (767383767).

The spelling of 423142443 in words is "four hundred twenty-three million, one hundred forty-two thousand, four hundred forty-three".