223243312 has 40 divisors (see below), whose sum is σ = 461756160. Its totient is φ = 104247360.

The previous prime is 223243309. The next prime is 223243351. The reversal of 223243312 is 213342322.

223243312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223243312³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16413 + ... + 26755.

It is an arithmetic number, because the mean of its divisors is an integer number (11543904).

Almost surely, 2^223243312 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 223243312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230878080).

223243312 is an abundant number, since it is smaller than the sum of its proper divisors (238512848).

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

223243312 is a wasteful number, since it uses less digits than its factorization.

223243312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10441 (or 10435 counting only the distinct ones).

The product of its digits is 1728, while the sum is 22.

The square root of 223243312 is about 14941.3289904212. The cubic root of 223243312 is about 606.6331685941.

Adding to 223243312 its reverse (213342322), we get a palindrome (436585634).

The spelling of 223243312 in words is "two hundred twenty-three million, two hundred forty-three thousand, three hundred twelve".