243540222045342 has 32 divisors (see below), whose sum is σ = 488143374124032. Its totient is φ = 81002926856544.

The previous prime is 243540222045301. The next prime is 243540222045343.

243540222045342 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×243540222045342³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243540222045294 and 243540222045303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243540222045343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126182968 + ... + 128098484.

It is an arithmetic number, because the mean of its divisors is an integer number (15254480441376).

Almost surely, 2^{243540222045342} is an apocalyptic number.

243540222045342 is an abundant number, since it is smaller than the sum of its proper divisors (244603152078690).

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

243540222045342 is a wasteful number, since it uses less digits than its factorization.

243540222045342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961752.

The product of its (nonzero) digits is 1843200, while the sum is 42.

The spelling of 243540222045342 in words is "two hundred forty-three trillion, five hundred forty billion, two hundred twenty-two million, forty-five thousand, three hundred forty-two".