223228 has 6 divisors (see below), whose sum is σ = 390656. Its totient is φ = 111612.

The previous prime is 223219. The next prime is 223229. The reversal of 223228 is 822322.

It is a super-3 number, since 3×223228³ = 33370849275445056, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223229) by changing a digit.

223228 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 27900 + ... + 27907.

2²²³²²⁸ is an apocalyptic number.

It is an amenable number.

223228 is a deficient number, since it is larger than the sum of its proper divisors (167428).

223228 is a wasteful number, since it uses less digits than its factorization.

223228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55811 (or 55809 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 223228 is about 472.4701048744. The cubic root of 223228 is about 60.6619298855.

The spelling of 223228 in words is "two hundred twenty-three thousand, two hundred twenty-eight".