243240414242 has 16 divisors (see below), whose sum is σ = 417854108160. Its totient is φ = 104028256608.

The previous prime is 243240414199. The next prime is 243240414247. The reversal of 243240414242 is 242414042342.

It is a junction number, because it is equal to n+sod(n) for n = 243240414199 and 243240414208.

It is not an unprimeable number, because it can be changed into a prime (243240414247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18129323 + ... + 18142734.

It is an arithmetic number, because the mean of its divisors is an integer number (26115881760).

Almost surely, 2^243240414242 is an apocalyptic number.

243240414242 is a deficient number, since it is larger than the sum of its proper divisors (174613693918).

243240414242 is a wasteful number, since it uses less digits than its factorization.

243240414242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36272545.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 243240414242 its reverse (242414042342), we get a palindrome (485654456584).

The spelling of 243240414242 in words is "two hundred forty-three billion, two hundred forty million, four hundred fourteen thousand, two hundred forty-two".