243120200 has 96 divisors (see below), whose sum is σ = 600631200. Its totient is φ = 91261440.

The previous prime is 243120191. The next prime is 243120223. The reversal of 243120200 is 2021342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520367 + ... + 520833.

It is an arithmetic number, because the mean of its divisors is an integer number (6256575).

Almost surely, 2^243120200 is an apocalyptic number.

243120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300315600).

243120200 is an abundant number, since it is smaller than the sum of its proper divisors (357511000).

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

243120200 is a wasteful number, since it uses less digits than its factorization.

243120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 243120200 is about 15592.3122082647. The cubic root of 243120200 is about 624.1280213443.

Adding to 243120200 its reverse (2021342), we get a palindrome (245141542).

The spelling of 243120200 in words is "two hundred forty-three million, one hundred twenty thousand, two hundred".