1340403444244 has 24 divisors (see below), whose sum is σ = 2347887725568. Its totient is φ = 669578551200.

The previous prime is 1340403444239. The next prime is 1340403444257. The reversal of 1340403444244 is 4424443040431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39444949 + ... + 39478915.

It is an arithmetic number, because the mean of its divisors is an integer number (97828655232).

Almost surely, 2^{1340403444244} is an apocalyptic number.

It is an amenable number.

1340403444244 is a deficient number, since it is larger than the sum of its proper divisors (1007484281324).

1340403444244 is a wasteful number, since it uses less digits than its factorization.

1340403444244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42855 (or 42853 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 1340403444244 its reverse (4424443040431), we get a palindrome (5764846484675).

The spelling of 1340403444244 in words is "one trillion, three hundred forty billion, four hundred three million, four hundred forty-four thousand, two hundred forty-four".