223432444 has 12 divisors (see below), whose sum is σ = 391172544. Its totient is φ = 111668864.

The previous prime is 223432427. The next prime is 223432477. The reversal of 223432444 is 444234322.

It is a happy number.

223432444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117 + ... + 21139.

It is an arithmetic number, because the mean of its divisors is an integer number (32597712).

Almost surely, 2^223432444 is an apocalyptic number.

It is an amenable number.

223432444 is a deficient number, since it is larger than the sum of its proper divisors (167740100).

223432444 is a wasteful number, since it uses less digits than its factorization.

223432444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23684 (or 23682 counting only the distinct ones).

The product of its digits is 18432, while the sum is 28.

The square root of 223432444 is about 14947.6568063359. The cubic root of 223432444 is about 606.8044336857.

Adding to 223432444 its reverse (444234322), we get a palindrome (667666766).

The spelling of 223432444 in words is "two hundred twenty-three million, four hundred thirty-two thousand, four hundred forty-four".