243042226 has 16 divisors (see below), whose sum is σ = 416845440. Its totient is φ = 104110560.

The previous prime is 243042203. The next prime is 243042227. The reversal of 243042226 is 622240342.

It is a self number, because there is not a number n which added to its sum of digits gives 243042226.

It is not an unprimeable number, because it can be changed into a prime (243042227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49030 + ... + 53758.

It is an arithmetic number, because the mean of its divisors is an integer number (26052840).

Almost surely, 2^243042226 is an apocalyptic number.

243042226 is a deficient number, since it is larger than the sum of its proper divisors (173803214).

243042226 is a wasteful number, since it uses less digits than its factorization.

243042226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8409.

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

The square root of 243042226 is about 15589.8116088681. The cubic root of 243042226 is about 624.0612903445.

Adding to 243042226 its reverse (622240342), we get a palindrome (865282568).

The spelling of 243042226 in words is "two hundred forty-three million, forty-two thousand, two hundred twenty-six".