243223242 has 16 divisors (see below), whose sum is σ = 487382880. Its totient is φ = 80918352.

The previous prime is 243223219. The next prime is 243223247. The reversal of 243223242 is 242322342.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (243223247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35617 + ... + 41892.

It is an arithmetic number, because the mean of its divisors is an integer number (30461430).

Almost surely, 2^243223242 is an apocalyptic number.

243223242 is an abundant number, since it is smaller than the sum of its proper divisors (244159638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243223242 is a wasteful number, since it uses less digits than its factorization.

243223242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78037.

The product of its digits is 4608, while the sum is 24.

The square root of 243223242 is about 15595.6161147933. The cubic root of 243223242 is about 624.2161839294.

Adding to 243223242 its reverse (242322342), we get a palindrome (485545584).

The spelling of 243223242 in words is "two hundred forty-three million, two hundred twenty-three thousand, two hundred forty-two".