243202240 has 28 divisors (see below), whose sum is σ = 579126096. Its totient is φ = 97280768.

The previous prime is 243202231. The next prime is 243202241. The reversal of 243202240 is 42202342.

It is not an unprimeable number, because it can be changed into a prime (243202241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379684 + ... + 380323.

Almost surely, 2^243202240 is an apocalyptic number.

243202240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243202240 is an abundant number, since it is smaller than the sum of its proper divisors (335923856).

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

243202240 is an equidigital number, since it uses as much as digits as its factorization.

243202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760024 (or 760014 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 243202240 is about 15594.9427700136. The cubic root of 243202240 is about 624.1982166694.

Adding to 243202240 its reverse (42202342), we get a palindrome (285404582).

The spelling of 243202240 in words is "two hundred forty-three million, two hundred two thousand, two hundred forty".