1340660707 has 2 divisors, whose sum is σ = 1340660708. Its totient is φ = 1340660706.

The previous prime is 1340660683. The next prime is 1340660747. The reversal of 1340660707 is 7070660431.

It is a weak prime.

It is an emirp because it is prime and its reverse (7070660431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340660707 is a prime.

It is a super-2 number, since 2×1340660707² = 3594742262587479698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1340660747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670330353 + 670330354.

It is an arithmetic number, because the mean of its divisors is an integer number (670330354).

Almost surely, 2^1340660707 is an apocalyptic number.

1340660707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340660707 is an equidigital number, since it uses as much as digits as its factorization.

1340660707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 1340660707 is about 36615.0338931975. The cubic root of 1340660707 is about 1102.6549387265.

The spelling of 1340660707 in words is "one billion, three hundred forty million, six hundred sixty thousand, seven hundred seven".