140442105503240 has 128 divisors (see below), whose sum is σ = 339221779666560. Its totient is φ = 52141514747904.

The previous prime is 140442105503177. The next prime is 140442105503411. The reversal of 140442105503240 is 42305501244041.

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 140442105503240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29203379 + ... + 33670781.

It is an arithmetic number, because the mean of its divisors is an integer number (2650170153645).

Almost surely, 2^{140442105503240} is an apocalyptic number.

140442105503240 is a gapful number since it is divisible by the number (10) 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 140442105503240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169610889833280).

140442105503240 is an abundant number, since it is smaller than the sum of its proper divisors (198779674163320).

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

140442105503240 is a wasteful number, since it uses less digits than its factorization.

140442105503240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468071 (or 4468067 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 140442105503240 its reverse (42305501244041), we get a palindrome (182747606747281).

The spelling of 140442105503240 in words is "one hundred forty trillion, four hundred forty-two billion, one hundred five million, five hundred three thousand, two hundred forty".