243235230 has 32 divisors (see below), whose sum is σ = 667160064. Its totient is φ = 55596576.

The previous prime is 243235183. The next prime is 243235241. The reversal of 243235230 is 32532342.

It is a super-2 number, since 2×243235230² = 118326754226305800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 243235230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578922 + ... + 579341.

It is an arithmetic number, because the mean of its divisors is an integer number (20848752).

Almost surely, 2^243235230 is an apocalyptic number.

243235230 is an abundant number, since it is smaller than the sum of its proper divisors (423924834).

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

243235230 is a wasteful number, since it uses less digits than its factorization.

243235230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158280.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 243235230 is about 15596.0004488330. Note that the first 3 decimals coincide. The cubic root of 243235230 is about 624.2264392276.

Adding to 243235230 its reverse (32532342), we get a palindrome (275767572).

The spelling of 243235230 in words is "two hundred forty-three million, two hundred thirty-five thousand, two hundred thirty".