223031232 has 84 divisors (see below), whose sum is σ = 663001976. Its totient is φ = 74338560.

The previous prime is 223031203. The next prime is 223031233. The reversal of 223031232 is 232130322.

It is a happy number.

223031232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223031233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8382 + ... + 22722.

Almost surely, 2^223031232 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 223031232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331500988).

223031232 is an abundant number, since it is smaller than the sum of its proper divisors (439970744).

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

223031232 is an equidigital number, since it uses as much as digits as its factorization.

223031232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14368 (or 14346 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 223031232 is about 14934.2302111625. The cubic root of 223031232 is about 606.4410082658.

Adding to 223031232 its reverse (232130322), we get a palindrome (455161554).

The spelling of 223031232 in words is "two hundred twenty-three million, thirty-one thousand, two hundred thirty-two".