243423432 has 96 divisors (see below), whose sum is σ = 756362880. Its totient is φ = 69281280.

The previous prime is 243423431. The next prime is 243423449. The reversal of 243423432 is 234324342.

243423432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 243423396 and 243423405.

It is not an unprimeable number, because it can be changed into a prime (243423431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155968 + ... + 157520.

It is an arithmetic number, because the mean of its divisors is an integer number (7878780).

Almost surely, 2^243423432 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 243423432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378181440).

243423432 is an abundant number, since it is smaller than the sum of its proper divisors (512939448).

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

243423432 is a wasteful number, since it uses less digits than its factorization.

243423432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883 (or 1876 counting only the distinct ones).

The product of its digits is 13824, while the sum is 27.

The square root of 243423432 is about 15602.0329444595. The cubic root of 243423432 is about 624.3873950471.

Adding to 243423432 its reverse (234324342), we get a palindrome (477747774).

The spelling of 243423432 in words is "two hundred forty-three million, four hundred twenty-three thousand, four hundred thirty-two".