243040430200 has 96 divisors (see below), whose sum is σ = 568123637760. Its totient is φ = 96691478400.

The previous prime is 243040430197. The next prime is 243040430209. The reversal of 243040430200 is 2034040342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243040430209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71670505 + ... + 71673895.

It is an arithmetic number, because the mean of its divisors is an integer number (5917954560).

Almost surely, 2^243040430200 is an apocalyptic number.

243040430200 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 243040430200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284061818880).

243040430200 is an abundant number, since it is smaller than the sum of its proper divisors (325083207560).

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

243040430200 is a wasteful number, since it uses less digits than its factorization.

243040430200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237 (or 5228 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 243040430200 its reverse (2034040342), we get a palindrome (245074470542).

The spelling of 243040430200 in words is "two hundred forty-three billion, forty million, four hundred thirty thousand, two hundred".