243242116 has 24 divisors (see below), whose sum is σ = 459578840. Its totient is φ = 111981312.

The previous prime is 243242113. The next prime is 243242117. The reversal of 243242116 is 611242342.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26563716 + 216678400 = 5154^2 + 14720^2 .

It is not an unprimeable number, because it can be changed into a prime (243242113) 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, 15550 + ... + 26986.

Almost surely, 2^243242116 is an apocalyptic number.

243242116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

243242116 is a deficient number, since it is larger than the sum of its proper divisors (216336724).

243242116 is a wasteful number, since it uses less digits than its factorization.

243242116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11863 (or 11861 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 243242116 is about 15596.2212089980. The cubic root of 243242116 is about 624.2323297980.

Adding to 243242116 its reverse (611242342), we get a palindrome (854484458).

The spelling of 243242116 in words is "two hundred forty-three million, two hundred forty-two thousand, one hundred sixteen".