243341522440 has 32 divisors (see below), whose sum is σ = 557848966680. Its totient is φ = 95500068352.

The previous prime is 243341522423. The next prime is 243341522497. The reversal of 243341522440 is 44225143342.

It can be written as a sum of positive squares in 4 ways, for example, as 238845283524 + 4496238916 = 488718^2 + 67054^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243341522396 and 243341522405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57389749 + ... + 57393988.

Almost surely, 2^243341522440 is an apocalyptic number.

243341522440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243341522440 is an abundant number, since it is smaller than the sum of its proper divisors (314507444240).

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

243341522440 is a wasteful number, since it uses less digits than its factorization.

243341522440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114783801 (or 114783797 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 243341522440 its reverse (44225143342), we get a palindrome (287566665782).

The spelling of 243341522440 in words is "two hundred forty-three billion, three hundred forty-one million, five hundred twenty-two thousand, four hundred forty".