1340202423344 has 40 divisors (see below), whose sum is σ = 2662423427328. Its totient is φ = 653155499520.

The previous prime is 1340202423311. The next prime is 1340202423353. The reversal of 1340202423344 is 4433242020431.

It is a super-2 number, since 2×1340202423344² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1340202423344.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226667 + ... + 1652810.

Almost surely, 2^{1340202423344} is an apocalyptic number.

It is an amenable number.

1340202423344 is a deficient number, since it is larger than the sum of its proper divisors (1322221003984).

1340202423344 is a wasteful number, since it uses less digits than its factorization.

1340202423344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880613 (or 1880607 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 1340202423344 its reverse (4433242020431), we get a palindrome (5773444443775).

The spelling of 1340202423344 in words is "one trillion, three hundred forty billion, two hundred two million, four hundred twenty-three thousand, three hundred forty-four".