223012444 has 12 divisors (see below), whose sum is σ = 394136568. Its totient is φ = 110402000.

The previous prime is 223012417. The next prime is 223012457. The reversal of 223012444 is 444210322.

It is a happy number.

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, 275602 + ... + 276409.

It is an arithmetic number, because the mean of its divisors is an integer number (32844714).

Almost surely, 2^223012444 is an apocalyptic number.

It is an amenable number.

223012444 is a deficient number, since it is larger than the sum of its proper divisors (171124124).

223012444 is a wasteful number, since it uses less digits than its factorization.

223012444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552116 (or 552114 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 223012444 is about 14933.6011731933. The cubic root of 223012444 is about 606.4239790610.

Adding to 223012444 its reverse (444210322), we get a palindrome (667222766).

The spelling of 223012444 in words is "two hundred twenty-three million, twelve thousand, four hundred forty-four".