223531224 has 64 divisors (see below), whose sum is σ = 642435840. Its totient is φ = 63488640.

The previous prime is 223531223. The next prime is 223531261. The reversal of 223531224 is 422135322.

223531224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 223531194 and 223531203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223531223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25219 + ... + 32909.

It is an arithmetic number, because the mean of its divisors is an integer number (10038060).

Almost surely, 2^223531224 is an apocalyptic number.

223531224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223531224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321217920).

223531224 is an abundant number, since it is smaller than the sum of its proper divisors (418904616).

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

223531224 is a wasteful number, since it uses less digits than its factorization.

223531224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7880 (or 7876 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 223531224 is about 14950.9606380326. The cubic root of 223531224 is about 606.8938437252.

Adding to 223531224 its reverse (422135322), we get a palindrome (645666546).

The spelling of 223531224 in words is "two hundred twenty-three million, five hundred thirty-one thousand, two hundred twenty-four".