243345444200 has 24 divisors (see below), whose sum is σ = 565778158230. Its totient is φ = 97338177600.

The previous prime is 243345444187. The next prime is 243345444229. The reversal of 243345444200 is 2444543342.

It can be written as a sum of positive squares in 3 ways, for example, as 206517531364 + 36827912836 = 454442^2 + 191906^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 608363411 + ... + 608363810.

Almost surely, 2^243345444200 is an apocalyptic number.

243345444200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243345444200 is an abundant number, since it is smaller than the sum of its proper divisors (322432714030).

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

243345444200 is a wasteful number, since it uses less digits than its factorization.

243345444200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216727237 (or 1216727228 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 35.

Adding to 243345444200 its reverse (2444543342), we get a palindrome (245789987542).

The spelling of 243345444200 in words is "two hundred forty-three billion, three hundred forty-five million, four hundred forty-four thousand, two hundred".