243432200 has 48 divisors (see below), whose sum is σ = 617438160. Its totient is φ = 88520000.

The previous prime is 243432179. The next prime is 243432209. The reversal of 243432200 is 2234342.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (243432209) 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, 53126 + ... + 57525.

It is an arithmetic number, because the mean of its divisors is an integer number (12863295).

Almost surely, 2^243432200 is an apocalyptic number.

243432200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243432200 is an abundant number, since it is smaller than the sum of its proper divisors (374005960).

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

243432200 is a wasteful number, since it uses less digits than its factorization.

243432200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110678 (or 110669 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 243432200 is about 15602.3139309527. The cubic root of 243432200 is about 624.3948916727.

Adding to 243432200 its reverse (2234342), we get a palindrome (245666542).

The spelling of 243432200 in words is "two hundred forty-three million, four hundred thirty-two thousand, two hundred".