140134304440 has 128 divisors (see below), whose sum is σ = 348695746560. Its totient is φ = 50364647424.

The previous prime is 140134304437. The next prime is 140134304441. The reversal of 140134304440 is 44403431041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 140134304399 and 140134304408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140134304441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3480102 + ... + 3520138.

It is an arithmetic number, because the mean of its divisors is an integer number (2724185520).

Almost surely, 2^140134304440 is an apocalyptic number.

140134304440 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 140134304440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174347873280).

140134304440 is an abundant number, since it is smaller than the sum of its proper divisors (208561442120).

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

140134304440 is a wasteful number, since it uses less digits than its factorization.

140134304440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40241 (or 40237 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 140134304440 its reverse (44403431041), we get a palindrome (184537735481).

The spelling of 140134304440 in words is "one hundred forty billion, one hundred thirty-four million, three hundred four thousand, four hundred forty".