243834438342 has 32 divisors (see below), whose sum is σ = 532908802944. Its totient is φ = 73763336000.

The previous prime is 243834438317. The next prime is 243834438347.

It is a happy number.

243834438342 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 243834438291 and 243834438300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243834438347) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3108159 + ... + 3185642.

It is an arithmetic number, because the mean of its divisors is an integer number (16653400092).

Almost surely, 2^243834438342 is an apocalyptic number.

243834438342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243834438342 is an abundant number, since it is smaller than the sum of its proper divisors (289074364602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243834438342 is a wasteful number, since it uses less digits than its factorization.

243834438342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6294404.

The product of its digits is 5308416, while the sum is 48.

The spelling of 243834438342 in words is "two hundred forty-three billion, eight hundred thirty-four million, four hundred thirty-eight thousand, three hundred forty-two".