1340400040658 has 16 divisors (see below), whose sum is σ = 2297888434944. Its totient is φ = 574442211840.

The previous prime is 1340400040657. The next prime is 1340400040703. The reversal of 1340400040658 is 8560400040431.

It is not an unprimeable number, because it can be changed into a prime (1340400040657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679610 + ... + 1772757.

It is an arithmetic number, because the mean of its divisors is an integer number (143618027184).

Almost surely, 2^{1340400040658} is an apocalyptic number.

1340400040658 is a deficient number, since it is larger than the sum of its proper divisors (957488394286).

1340400040658 is a wasteful number, since it uses less digits than its factorization.

1340400040658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491417.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 1340400040658 in words is "one trillion, three hundred forty billion, four hundred million, forty thousand, six hundred fifty-eight".