1340440346668 has 12 divisors (see below), whose sum is σ = 2346406170472. Its totient is φ = 670038583680.

The previous prime is 1340440346657. The next prime is 1340440346677. The reversal of 1340440346668 is 8666430440431.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45380805 + ... + 45410332.

Almost surely, 2^{1340440346668} is an apocalyptic number.

It is an amenable number.

1340440346668 is a deficient number, since it is larger than the sum of its proper divisors (1005965823804).

1340440346668 is a wasteful number, since it uses less digits than its factorization.

1340440346668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90794832 (or 90794830 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 49.

The spelling of 1340440346668 in words is "one trillion, three hundred forty billion, four hundred forty million, three hundred forty-six thousand, six hundred sixty-eight".