243343340240 has 160 divisors (see below), whose sum is σ = 759639879936. Its totient is φ = 70012846080.

The previous prime is 243343340197. The next prime is 243343340263. The reversal of 243343340240 is 42043343342.

It is a junction number, because it is equal to n+sod(n) for n = 243343340197 and 243343340206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1439297 + ... + 1599456.

Almost surely, 2^243343340240 is an apocalyptic number.

243343340240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243343340240 is an abundant number, since it is smaller than the sum of its proper divisors (516296539696).

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

243343340240 is a wasteful number, since it uses less digits than its factorization.

243343340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038797 (or 3038791 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 32.

Adding to 243343340240 its reverse (42043343342), we get a palindrome (285386683582).

The spelling of 243343340240 in words is "two hundred forty-three billion, three hundred forty-three million, three hundred forty thousand, two hundred forty".