1340400040422 has 8 divisors (see below), whose sum is σ = 2680800080856. Its totient is φ = 446800013472.

The previous prime is 1340400040381. The next prime is 1340400040423. The reversal of 1340400040422 is 2240400040431.

It is a happy number.

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

1340400040422 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1340400040392 and 1340400040401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340400040423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111700003363 + ... + 111700003374.

It is an arithmetic number, because the mean of its divisors is an integer number (335100010107).

Almost surely, 2^{1340400040422} is an apocalyptic number.

1340400040422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340400040422 is a wasteful number, since it uses less digits than its factorization.

1340400040422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223400006742.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 1340400040422 its reverse (2240400040431), we get a palindrome (3580800080853).

Subtracting 1340400040422 from its reverse (2240400040431), we obtain a palindrome (900000000009).

The spelling of 1340400040422 in words is "one trillion, three hundred forty billion, four hundred million, forty thousand, four hundred twenty-two".