243402432 has 112 divisors (see below), whose sum is σ = 792675072. Its totient is φ = 64189440.

The previous prime is 243402409. The next prime is 243402433. The reversal of 243402432 is 234204342.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (243402433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10507 + ... + 24437.

It is an arithmetic number, because the mean of its divisors is an integer number (7077456).

Almost surely, 2^243402432 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 243402432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396337536).

243402432 is an abundant number, since it is smaller than the sum of its proper divisors (549272640).

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

243402432 is a wasteful number, since it uses less digits than its factorization.

243402432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13966 (or 13956 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 243402432 is about 15601.3599407231. The cubic root of 243402432 is about 624.3694393498.

Adding to 243402432 its reverse (234204342), we get a palindrome (477606774).

The spelling of 243402432 in words is "two hundred forty-three million, four hundred two thousand, four hundred thirty-two".