223013444 has 12 divisors (see below), whose sum is σ = 390421500. Its totient is φ = 111464448.

The previous prime is 223013419. The next prime is 223013489. The reversal of 223013444 is 444310322.

It can be written as a sum of positive squares in 2 ways, for example, as 199374400 + 23639044 = 14120^2 + 4862^2 .

It is a super-2 number, since 2×223013444² = 99469992409482272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3332 + ... + 21380.

It is an arithmetic number, because the mean of its divisors is an integer number (32535125).

Almost surely, 2^223013444 is an apocalyptic number.

It is an amenable number.

223013444 is a deficient number, since it is larger than the sum of its proper divisors (167408056).

223013444 is a wasteful number, since it uses less digits than its factorization.

223013444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21142 (or 21140 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 223013444 is about 14933.6346546981. The cubic root of 223013444 is about 606.4248854724.

Adding to 223013444 its reverse (444310322), we get a palindrome (667323766).

The spelling of 223013444 in words is "two hundred twenty-three million, thirteen thousand, four hundred forty-four".