243231204 has 96 divisors (see below), whose sum is σ = 603832320. Its totient is φ = 76123008.

The previous prime is 243231199. The next prime is 243231221. The reversal of 243231204 is 402132342.

It is a super-2 number, since 2×243231204² = 118322837198579232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2361417 + ... + 2361519.

It is an arithmetic number, because the mean of its divisors is an integer number (6289920).

Almost surely, 2^243231204 is an apocalyptic number.

It is an amenable number.

243231204 is an abundant number, since it is smaller than the sum of its proper divisors (360601116).

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

243231204 is a wasteful number, since it uses less digits than its factorization.

243231204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243231204 is about 15595.8713767458. The cubic root of 243231204 is about 624.2229951686. Note that the first 3 decimals are identical.

Adding to 243231204 its reverse (402132342), we get a palindrome (645363546).

The spelling of 243231204 in words is "two hundred forty-three million, two hundred thirty-one thousand, two hundred four".