140535443440 has 80 divisors (see below), whose sum is σ = 374531332032. Its totient is φ = 48040538112.

The previous prime is 140535443429. The next prime is 140535443467. The reversal of 140535443440 is 44344535041.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 140535443440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183619 + ... + 561058.

Almost surely, 2^140535443440 is an apocalyptic number.

140535443440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140535443440 is an abundant number, since it is smaller than the sum of its proper divisors (233995888592).

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

140535443440 is a wasteful number, since it uses less digits than its factorization.

140535443440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745034 (or 745028 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 140535443440 its reverse (44344535041), we get a palindrome (184879978481).

The spelling of 140535443440 in words is "one hundred forty billion, five hundred thirty-five million, four hundred forty-three thousand, four hundred forty".