1340400040505 has 8 divisors (see below), whose sum is σ = 1608510976512. Its totient is φ = 1072299413808.

The previous prime is 1340400040489. The next prime is 1340400040517. The reversal of 1340400040505 is 5050400040431.

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

It is a cyclic number.

It is not a de Polignac number, because 1340400040505 - 2⁴ = 1340400040489 is a prime.

It is a Duffinian 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, 2288339 + ... + 2813768.

It is an arithmetic number, because the mean of its divisors is an integer number (201063872064).

Almost surely, 2^{1340400040505} is an apocalyptic number.

It is an amenable number.

1340400040505 is a deficient number, since it is larger than the sum of its proper divisors (268110936007).

1340400040505 is an equidigital number, since it uses as much as digits as its factorization.

1340400040505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154655.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 1340400040505 its reverse (5050400040431), we get a palindrome (6390800080936).

The spelling of 1340400040505 in words is "one trillion, three hundred forty billion, four hundred million, forty thousand, five hundred five".