140440414442421 has 8 divisors (see below), whose sum is σ = 187381182928384. Its totient is φ = 93563294459040.

The previous prime is 140440414442351. The next prime is 140440414442443. The reversal of 140440414442421 is 124244414044041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140440414442421 - 2¹⁸ = 140440414180277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140440414442421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140440414442491) 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 7 ways as a sum of consecutive naturals, for example, 15912120496 + ... + 15912129321.

It is an arithmetic number, because the mean of its divisors is an integer number (23422647866048).

Almost surely, 2^{140440414442421} is an apocalyptic number.

It is an amenable number.

140440414442421 is a deficient number, since it is larger than the sum of its proper divisors (46940768485963).

140440414442421 is a wasteful number, since it uses less digits than its factorization.

140440414442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31824251291.

The product of its (nonzero) digits is 262144, while the sum is 39.

Adding to 140440414442421 its reverse (124244414044041), we get a palindrome (264684828486462).

The spelling of 140440414442421 in words is "one hundred forty trillion, four hundred forty billion, four hundred fourteen million, four hundred forty-two thousand, four hundred twenty-one".