140444444040 has 64 divisors (see below), whose sum is σ = 421379841600. Its totient is φ = 37447717632.

The previous prime is 140444444039. The next prime is 140444444081. The reversal of 140444444040 is 40444444041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 140444443992 and 140444444010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1116666 + ... + 1236054.

It is an arithmetic number, because the mean of its divisors is an integer number (6584060025).

Almost surely, 2^140444444040 is an apocalyptic number.

140444444040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140444444040 is an abundant number, since it is smaller than the sum of its proper divisors (280935397560).

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

140444444040 is a wasteful number, since it uses less digits than its factorization.

140444444040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129206 (or 129202 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 33.

Adding to 140444444040 its reverse (40444444041), we get a palindrome (180888888081).

Subtracting from 140444444040 its reverse (40444444041), we obtain a palindrome (99999999999).

The spelling of 140444444040 in words is "one hundred forty billion, four hundred forty-four million, four hundred forty-four thousand, forty".