243686342 has 16 divisors (see below), whose sum is σ = 372006432. Its totient is φ = 119696640.

The previous prime is 243686341. The next prime is 243686351.

243686342 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 243686296 and 243686305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243686341) 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, 38678 + ... + 44534.

It is an arithmetic number, because the mean of its divisors is an integer number (23250402).

Almost surely, 2^243686342 is an apocalyptic number.

243686342 is a deficient number, since it is larger than the sum of its proper divisors (128320090).

243686342 is a wasteful number, since it uses less digits than its factorization.

243686342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6223.

The product of its digits is 165888, while the sum is 38.

The square root of 243686342 is about 15610.4561752692. The cubic root of 243686342 is about 624.6121044824.

The spelling of 243686342 in words is "two hundred forty-three million, six hundred eighty-six thousand, three hundred forty-two".