140243404140 has 144 divisors (see below), whose sum is σ = 490721317632. Its totient is φ = 31756019328.

The previous prime is 140243404127. The next prime is 140243404141. The reversal of 140243404140 is 41404342041.

140243404140 is a `hidden beast` number, since 1 + 4 + 0 + 243 + 4 + 0 + 414 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (140243404141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 385294 + ... + 654933.

It is an arithmetic number, because the mean of its divisors is an integer number (3407786928).

Almost surely, 2^140243404140 is an apocalyptic number.

140243404140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140243404140 is an abundant number, since it is smaller than the sum of its proper divisors (350477913492).

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

140243404140 is a wasteful number, since it uses less digits than its factorization.

140243404140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040356 (or 1040351 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 140243404140 its reverse (41404342041), we get a palindrome (181647746181).

The spelling of 140243404140 in words is "one hundred forty billion, two hundred forty-three million, four hundred four thousand, one hundred forty".