1340404310444 has 24 divisors (see below), whose sum is σ = 2422009755648. Its totient is φ = 648412848720.

The previous prime is 1340404310431. The next prime is 1340404310449. The reversal of 1340404310444 is 4440134040431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340404310444.

It is not an unprimeable number, because it can be changed into a prime (1340404310449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939722 + ... + 1887825.

It is an arithmetic number, because the mean of its divisors is an integer number (100917073152).

Almost surely, 2^{1340404310444} is an apocalyptic number.

It is an amenable number.

1340404310444 is a deficient number, since it is larger than the sum of its proper divisors (1081605445204).

1340404310444 is a wasteful number, since it uses less digits than its factorization.

1340404310444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831405 (or 2831403 counting only the distinct ones).

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

Adding to 1340404310444 its reverse (4440134040431), we get a palindrome (5780538350875).

The spelling of 1340404310444 in words is "one trillion, three hundred forty billion, four hundred four million, three hundred ten thousand, four hundred forty-four".