223231444 has 12 divisors (see below), whose sum is σ = 404126100. Its totient is φ = 107766848.

The previous prime is 223231427. The next prime is 223231451. The reversal of 223231444 is 444132322.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 166410000 + 56821444 = 12900^2 + 7538^2 .

It is a super-3 number, since 3×223231444³ (a number of 26 digits) contains 333 as substring.

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, 962089 + ... + 962320.

It is an arithmetic number, because the mean of its divisors is an integer number (33677175).

Almost surely, 2^223231444 is an apocalyptic number.

It is an amenable number.

223231444 is a deficient number, since it is larger than the sum of its proper divisors (180894656).

223231444 is a wasteful number, since it uses less digits than its factorization.

223231444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924442 (or 1924440 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 223231444 is about 14940.9318317165. The cubic root of 223231444 is about 606.6224185146.

Adding to 223231444 its reverse (444132322), we get a palindrome (667363766).

The spelling of 223231444 in words is "two hundred twenty-three million, two hundred thirty-one thousand, four hundred forty-four".