243240042342 has 16 divisors (see below), whose sum is σ = 530705547072. Its totient is φ = 73709103720.

The previous prime is 243240042341. The next prime is 243240042359.

243240042342 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243240042341) 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, 1842727528 + ... + 1842727659.

It is an arithmetic number, because the mean of its divisors is an integer number (33169096692).

Almost surely, 2^243240042342 is an apocalyptic number.

243240042342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243240042342 is an abundant number, since it is smaller than the sum of its proper divisors (287465504730).

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

243240042342 is a wasteful number, since it uses less digits than its factorization.

243240042342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685455203.

The product of its (nonzero) digits is 36864, while the sum is 30.

It can be divided in two parts, 2432400 and 42342, that added together give a palindrome (2474742).

The spelling of 243240042342 in words is "two hundred forty-three billion, two hundred forty million, forty-two thousand, three hundred forty-two".