223432212 has 48 divisors (see below), whose sum is σ = 545287680. Its totient is φ = 71071968.

The previous prime is 223432199. The next prime is 223432271. The reversal of 223432212 is 212234322.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 176839 + ... + 178097.

It is an arithmetic number, because the mean of its divisors is an integer number (11360160).

Almost surely, 2^223432212 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 223432212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272643840).

223432212 is an abundant number, since it is smaller than the sum of its proper divisors (321855468).

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

223432212 is a wasteful number, since it uses less digits than its factorization.

223432212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1930 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 223432212 is about 14947.6490459202. The cubic root of 223432212 is about 606.8042236615.

Adding to 223432212 its reverse (212234322), we get a palindrome (435666534).

The spelling of 223432212 in words is "two hundred twenty-three million, four hundred thirty-two thousand, two hundred twelve".