243433040140 has 24 divisors (see below), whose sum is σ = 518212255680. Its totient is φ = 96039335808.

The previous prime is 243433040107. The next prime is 243433040159. The reversal of 243433040140 is 41040334342.

243433040140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 243433040099 and 243433040108.

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, 83366020 + ... + 83368939.

It is an arithmetic number, because the mean of its divisors is an integer number (21592177320).

Almost surely, 2^243433040140 is an apocalyptic number.

243433040140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243433040140 is an abundant number, since it is smaller than the sum of its proper divisors (274779215540).

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

243433040140 is a wasteful number, since it uses less digits than its factorization.

243433040140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166735041 (or 166735039 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 243433040140 its reverse (41040334342), we get a palindrome (284473374482).

The spelling of 243433040140 in words is "two hundred forty-three billion, four hundred thirty-three million, forty thousand, one hundred forty".