140304443231440 has 80 divisors (see below), whose sum is σ = 338188388464080. Its totient is φ = 54069001871360.

The previous prime is 140304443231413. The next prime is 140304443231443. The reversal of 140304443231440 is 44132344403041.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 17740236391056 + 122564206840384 = 4211916^2 + 11070872^2 .

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 140304443231440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140304443231443) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 64522729 + ... + 66661768.

It is an arithmetic number, because the mean of its divisors is an integer number (4227354855801).

Almost surely, 2^{140304443231440} is an apocalyptic number.

140304443231440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140304443231440 is an abundant number, since it is smaller than the sum of its proper divisors (197883945232640).

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

140304443231440 is a wasteful number, since it uses less digits than its factorization.

140304443231440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131185000 (or 131184994 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 140304443231440 its reverse (44132344403041), we get a palindrome (184436787634481).

The spelling of 140304443231440 in words is "one hundred forty trillion, three hundred four billion, four hundred forty-three million, two hundred thirty-one thousand, four hundred forty".