140440330401440 has 24 divisors (see below), whose sum is σ = 331790280573780. Its totient is φ = 56176132160512.

The previous prime is 140440330401433. The next prime is 140440330401443. The reversal of 140440330401440 is 44104033044041.

It can be written as a sum of positive squares in 2 ways, for example, as 117344962777744 + 23095367623696 = 10832588^2 + 4805764^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 140440330401397 and 140440330401406.

It is not an unprimeable number, because it can be changed into a prime (140440330401443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438876032345 + ... + 438876032664.

Almost surely, 2^{140440330401440} is an apocalyptic number.

140440330401440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140440330401440 is an abundant number, since it is smaller than the sum of its proper divisors (191349950172340).

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

140440330401440 is an equidigital number, since it uses as much as digits as its factorization.

140440330401440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877752065024 (or 877752065016 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 140440330401440 its reverse (44104033044041), we get a palindrome (184544363445481).

The spelling of 140440330401440 in words is "one hundred forty trillion, four hundred forty billion, three hundred thirty million, four hundred one thousand, four hundred forty".