423421233 has 4 divisors (see below), whose sum is σ = 564561648. Its totient is φ = 282280820.

The previous prime is 423421223. The next prime is 423421241. The reversal of 423421233 is 332124324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423421233 - 2⁴ = 423421217 is a prime.

It is a super-3 number, since 3×423421233³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (423421223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70570203 + ... + 70570208.

It is an arithmetic number, because the mean of its divisors is an integer number (141140412).

Almost surely, 2^423421233 is an apocalyptic number.

It is an amenable number.

423421233 is a deficient number, since it is larger than the sum of its proper divisors (141140415).

423421233 is a wasteful number, since it uses less digits than its factorization.

423421233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141140414.

The product of its digits is 3456, while the sum is 24.

The square root of 423421233 is about 20577.2017776956. The cubic root of 423421233 is about 750.9151690555.

Adding to 423421233 its reverse (332124324), we get a palindrome (755545557).

The spelling of 423421233 in words is "four hundred twenty-three million, four hundred twenty-one thousand, two hundred thirty-three".