223444424 has 64 divisors (see below), whose sum is σ = 493637760. Its totient is φ = 92828160.

The previous prime is 223444409. The next prime is 223444453. The reversal of 223444424 is 424444322.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704714 + ... + 705030.

It is an arithmetic number, because the mean of its divisors is an integer number (7713090).

Almost surely, 2^223444424 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 223444424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246818880).

223444424 is an abundant number, since it is smaller than the sum of its proper divisors (270193336).

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

223444424 is a wasteful number, since it uses less digits than its factorization.

223444424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 674 counting only the distinct ones).

The product of its digits is 24576, while the sum is 29.

The square root of 223444424 is about 14948.0575326696. The cubic root of 223444424 is about 606.8152787045.

Adding to 223444424 its reverse (424444322), we get a palindrome (647888746).

The spelling of 223444424 in words is "two hundred twenty-three million, four hundred forty-four thousand, four hundred twenty-four".