423306239 has 4 divisors (see below), whose sum is σ = 448206624. Its totient is φ = 398405856.

The previous prime is 423306223. The next prime is 423306259. The reversal of 423306239 is 932603324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423306239 - 2⁴ = 423306223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423306259) 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 in 3 ways as a sum of consecutive naturals, for example, 12450167 + ... + 12450200.

It is an arithmetic number, because the mean of its divisors is an integer number (112051656).

Almost surely, 2^423306239 is an apocalyptic number.

423306239 is a deficient number, since it is larger than the sum of its proper divisors (24900385).

423306239 is a wasteful number, since it uses less digits than its factorization.

423306239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24900384.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 423306239 is about 20574.4073790717. The cubic root of 423306239 is about 750.8471843076.

The spelling of 423306239 in words is "four hundred twenty-three million, three hundred six thousand, two hundred thirty-nine".