423004243 has 4 divisors (see below), whose sum is σ = 423051400. Its totient is φ = 422957088.

The previous prime is 423004229. The next prime is 423004249. The reversal of 423004243 is 342400324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 423004243 - 2⁹ = 423003731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423004249) 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 3 ways as a sum of consecutive naturals, for example, 5505 + ... + 29602.

It is an arithmetic number, because the mean of its divisors is an integer number (105762850).

Almost surely, 2^423004243 is an apocalyptic number.

423004243 is a deficient number, since it is larger than the sum of its proper divisors (47157).

423004243 is a wasteful number, since it uses less digits than its factorization.

423004243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47156.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 423004243 is about 20567.0669518043. The cubic root of 423004243 is about 750.6685848523.

Adding to 423004243 its reverse (342400324), we get a palindrome (765404567).

The spelling of 423004243 in words is "four hundred twenty-three million, four thousand, two hundred forty-three".