423453 has 24 divisors (see below), whose sum is σ = 658368. Its totient is φ = 240768.

The previous prime is 423439. The next prime is 423457. The reversal of 423453 is 354324.

It is a happy number.

It is not a de Polignac number, because 423453 - 2⁶ = 423389 is a prime.

423453 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423453.

It is not an unprimeable number, because it can be changed into a prime (423457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18400 + ... + 18422.

It is an arithmetic number, because the mean of its divisors is an integer number (27432).

2⁴²³⁴⁵³ is an apocalyptic number.

It is an amenable number.

423453 is a deficient number, since it is larger than the sum of its proper divisors (234915).

423453 is a wasteful number, since it uses less digits than its factorization.

423453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 62 counting only the distinct ones).

The product of its digits is 1440, while the sum is 21.

The square root of 423453 is about 650.7326640027. The cubic root of 423453 is about 75.0933947617.

Adding to 423453 its reverse (354324), we get a palindrome (777777).

The spelling of 423453 in words is "four hundred twenty-three thousand, four hundred fifty-three".