243175228 has 12 divisors (see below), whose sum is σ = 444059280. Its totient is φ = 116301152.

The previous prime is 243175151. The next prime is 243175249. The reversal of 243175228 is 822571342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243175193 and 243175202.

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, 1321513 + ... + 1321696.

It is an arithmetic number, because the mean of its divisors is an integer number (37004940).

Almost surely, 2^243175228 is an apocalyptic number.

It is an amenable number.

243175228 is a deficient number, since it is larger than the sum of its proper divisors (200884052).

243175228 is a wasteful number, since it uses less digits than its factorization.

243175228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643236 (or 2643234 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 243175228 is about 15594.0766959766. The cubic root of 243175228 is about 624.1751063196.

The spelling of 243175228 in words is "two hundred forty-three million, one hundred seventy-five thousand, two hundred twenty-eight".