2140443400442 has 16 divisors (see below), whose sum is σ = 3218303612160. Its totient is φ = 1067676830208.

The previous prime is 2140443400441. The next prime is 2140443400463. The reversal of 2140443400442 is 2440043440412.

It is a junction number, because it is equal to n+sod(n) for n = 2140443400399 and 2140443400408.

It is not an unprimeable number, because it can be changed into a prime (2140443400441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2988653 + ... + 3634959.

It is an arithmetic number, because the mean of its divisors is an integer number (201143975760).

Almost surely, 2^{2140443400442} is an apocalyptic number.

2140443400442 is a deficient number, since it is larger than the sum of its proper divisors (1077860211718).

2140443400442 is a wasteful number, since it uses less digits than its factorization.

2140443400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650245.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 2140443400442 its reverse (2440043440412), we get a palindrome (4580486840854).

The spelling of 2140443400442 in words is "two trillion, one hundred forty billion, four hundred forty-three million, four hundred thousand, four hundred forty-two".