243230212 has 12 divisors (see below), whose sum is σ = 428032080. Its totient is φ = 120935336.

The previous prime is 243230179. The next prime is 243230213. The reversal of 243230212 is 212032342.

It is a self number, because there is not a number n which added to its sum of digits gives 243230212.

It is not an unprimeable number, because it can be changed into a prime (243230213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169138 + ... + 170569.

It is an arithmetic number, because the mean of its divisors is an integer number (35669340).

Almost surely, 2^243230212 is an apocalyptic number.

It is an amenable number.

243230212 is a deficient number, since it is larger than the sum of its proper divisors (184801868).

243230212 is a wasteful number, since it uses less digits than its factorization.

243230212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339890 (or 339888 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 243230212 is about 15595.8395734247. The cubic root of 243230212 is about 624.2221465520. Note that the first 3 decimals are identical.

Adding to 243230212 its reverse (212032342), we get a palindrome (455262554).

The spelling of 243230212 in words is "two hundred forty-three million, two hundred thirty thousand, two hundred twelve".