243868342 has 8 divisors (see below), whose sum is σ = 371262456. Its totient is φ = 120114192.

The previous prime is 243868327. The next prime is 243868343.

243868342 is nontrivially palindromic in base 10.

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 = 243868295 and 243868304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243868343) 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 3 ways as a sum of consecutive naturals, for example, 909823 + ... + 910090.

It is an arithmetic number, because the mean of its divisors is an integer number (46407807).

Almost surely, 2^243868342 is an apocalyptic number.

243868342 is a deficient number, since it is larger than the sum of its proper divisors (127394114).

243868342 is a wasteful number, since it uses less digits than its factorization.

243868342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819982.

The product of its digits is 221184, while the sum is 40.

The square root of 243868342 is about 15616.2845132893. The cubic root of 243868342 is about 624.7675654094.

The spelling of 243868342 in words is "two hundred forty-three million, eight hundred sixty-eight thousand, three hundred forty-two".