243442430242 has 8 divisors (see below), whose sum is σ = 398360340432. Its totient is φ = 110655650100.

The previous prime is 243442430239. The next prime is 243442430261. The reversal of 243442430242 is 242034244342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 243442430198 and 243442430207.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5532782484 + ... + 5532782527.

It is an arithmetic number, because the mean of its divisors is an integer number (49795042554).

Almost surely, 2^243442430242 is an apocalyptic number.

243442430242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243442430242 is a deficient number, since it is larger than the sum of its proper divisors (154917910190).

243442430242 is a wasteful number, since it uses less digits than its factorization.

243442430242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11065565024.

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 243442430242 its reverse (242034244342), we get a palindrome (485476674584).

The spelling of 243442430242 in words is "two hundred forty-three billion, four hundred forty-two million, four hundred thirty thousand, two hundred forty-two".