243432032 has 48 divisors (see below), whose sum is σ = 498098160. Its totient is φ = 116971008.

The previous prime is 243432019. The next prime is 243432043. The reversal of 243432032 is 230234342.

It is a junction number, because it is equal to n+sod(n) for n = 243431989 and 243432007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256583 + ... + 257529.

It is an arithmetic number, because the mean of its divisors is an integer number (10377045).

Almost surely, 2^243432032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243432032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249049080).

243432032 is an abundant number, since it is smaller than the sum of its proper divisors (254666128).

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

243432032 is a wasteful number, since it uses less digits than its factorization.

243432032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 243432032 is about 15602.3085471349. The cubic root of 243432032 is about 624.3947480346.

Adding to 243432032 its reverse (230234342), we get a palindrome (473666374).

The spelling of 243432032 in words is "two hundred forty-three million, four hundred thirty-two thousand, thirty-two".