243040222 has 16 divisors (see below), whose sum is σ = 370551312. Its totient is φ = 119528640.

The previous prime is 243040201. The next prime is 243040247. The reversal of 243040222 is 222040342.

It is a self number, because there is not a number n which added to its sum of digits gives 243040222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176328 + ... + 177700.

It is an arithmetic number, because the mean of its divisors is an integer number (23159457).

Almost surely, 2^243040222 is an apocalyptic number.

243040222 is a deficient number, since it is larger than the sum of its proper divisors (127511090).

243040222 is a wasteful number, since it uses less digits than its factorization.

243040222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 243040222 is about 15589.7473359898. The cubic root of 243040222 is about 624.0595751114.

Adding to 243040222 its reverse (222040342), we get a palindrome (465080564).

The spelling of 243040222 in words is "two hundred forty-three million, forty thousand, two hundred twenty-two".