243235400232 has 256 divisors, whose sum is σ = 720707051520. Its totient is φ = 67653273600.

The previous prime is 243235400203. The next prime is 243235400251. The reversal of 243235400232 is 232004532342.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 243235400232.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16393057 + ... + 16407887.

It is an arithmetic number, because the mean of its divisors is an integer number (2815261920).

Almost surely, 2^243235400232 is an apocalyptic number.

243235400232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243235400232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360353525760).

243235400232 is an abundant number, since it is smaller than the sum of its proper divisors (477471651288).

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

243235400232 is a wasteful number, since it uses less digits than its factorization.

243235400232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14984 (or 14980 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 243235400232 its reverse (232004532342), we get a palindrome (475239932574).

The spelling of 243235400232 in words is "two hundred forty-three billion, two hundred thirty-five million, four hundred thousand, two hundred thirty-two".