243400040432 has 40 divisors (see below), whose sum is σ = 483870957360. Its totient is φ = 118539717120.

The previous prime is 243400040413. The next prime is 243400040483. The reversal of 243400040432 is 234040004342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106358 + ... + 705770.

It is an arithmetic number, because the mean of its divisors is an integer number (12096773934).

Almost surely, 2^243400040432 is an apocalyptic number.

It is an amenable number.

243400040432 is a deficient number, since it is larger than the sum of its proper divisors (240470916928).

243400040432 is a wasteful number, since it uses less digits than its factorization.

243400040432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600081 (or 600075 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 243400040432 its reverse (234040004342), we get a palindrome (477440044774).

The spelling of 243400040432 in words is "two hundred forty-three billion, four hundred million, forty thousand, four hundred thirty-two".