223423424 has 84 divisors (see below), whose sum is σ = 525651984. Its totient is φ = 92295168.

The previous prime is 223423393. The next prime is 223423441. The reversal of 223423424 is 424324322.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 223423393 and 223423402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 376472 + ... + 377064.

Almost surely, 2^223423424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223423424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262825992).

223423424 is an abundant number, since it is smaller than the sum of its proper divisors (302228560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223423424 is an equidigital number, since it uses as much as digits as its factorization.

223423424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 631 counting only the distinct ones).

The product of its digits is 9216, while the sum is 26.

The square root of 223423424 is about 14947.3550837598. The cubic root of 223423424 is about 606.7962679816.

Adding to 223423424 its reverse (424324322), we get a palindrome (647747746).

The spelling of 223423424 in words is "two hundred twenty-three million, four hundred twenty-three thousand, four hundred twenty-four".