243338842638200 has 48 divisors (see below), whose sum is σ = 565838743723560. Its totient is φ = 97322473040000.

The previous prime is 243338842638173. The next prime is 243338842638209. The reversal of 243338842638200 is 2836248833342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243338842638209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80156171 + ... + 83136570.

Almost surely, 2^{243338842638200} is an apocalyptic number.

243338842638200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243338842638200 is an abundant number, since it is smaller than the sum of its proper divisors (322499901085360).

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

243338842638200 is a wasteful number, since it uses less digits than its factorization.

243338842638200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163300208 (or 163300199 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 56.

The spelling of 243338842638200 in words is "two hundred forty-three trillion, three hundred thirty-eight billion, eight hundred forty-two million, six hundred thirty-eight thousand, two hundred".