423443253 has 12 divisors (see below), whose sum is σ = 595871808. Its totient is φ = 267437160.

The previous prime is 423443243. The next prime is 423443261. The reversal of 423443253 is 352344324.

It is not a de Polignac number, because 423443253 - 2⁹ = 423442741 is a prime.

It is a super-2 number, since 2×423443253² = 358608377022444018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423443253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423443233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194413 + ... + 196578.

It is an arithmetic number, because the mean of its divisors is an integer number (49655984).

Almost surely, 2^423443253 is an apocalyptic number.

It is an amenable number.

423443253 is a deficient number, since it is larger than the sum of its proper divisors (172428555).

423443253 is a wasteful number, since it uses less digits than its factorization.

423443253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391032 (or 391013 counting only the distinct ones).

The product of its digits is 34560, while the sum is 30.

The square root of 423443253 is about 20577.7368289129. The cubic root of 423443253 is about 750.9281859317.

Adding to 423443253 its reverse (352344324), we get a palindrome (775787577).

The spelling of 423443253 in words is "four hundred twenty-three million, four hundred forty-three thousand, two hundred fifty-three".