243040332 has 12 divisors (see below), whose sum is σ = 567094136. Its totient is φ = 81013440.

The previous prime is 243040331. The next prime is 243040361. The reversal of 243040332 is 233040342.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 243040299 and 243040308.

It is not an unprimeable number, because it can be changed into a prime (243040331) 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, 10126669 + ... + 10126692.

Almost surely, 2^243040332 is an apocalyptic number.

It is an amenable number.

243040332 is an abundant number, since it is smaller than the sum of its proper divisors (324053804).

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

243040332 is a wasteful number, since it uses less digits than its factorization.

243040332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20253368 (or 20253366 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 243040332 is about 15589.7508639490. The cubic root of 243040332 is about 624.0596692611.

Adding to 243040332 its reverse (233040342), we get a palindrome (476080674).

The spelling of 243040332 in words is "two hundred forty-three million, forty thousand, three hundred thirty-two".