223423212 has 12 divisors (see below), whose sum is σ = 521320856. Its totient is φ = 74474400.

The previous prime is 223423199. The next prime is 223423217. The reversal of 223423212 is 212324322.

223423212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is not an unprimeable number, because it can be changed into a prime (223423217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9309289 + ... + 9309312.

Almost surely, 2^223423212 is an apocalyptic number.

It is an amenable number.

223423212 is an abundant number, since it is smaller than the sum of its proper divisors (297897644).

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

223423212 is a wasteful number, since it uses less digits than its factorization.

223423212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18618608 (or 18618606 counting only the distinct ones).

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

The square root of 223423212 is about 14947.3479922025. The cubic root of 223423212 is about 606.7960760578.

Adding to 223423212 its reverse (212324322), we get a palindrome (435747534).

The spelling of 223423212 in words is "two hundred twenty-three million, four hundred twenty-three thousand, two hundred twelve".