1340740867 has 2 divisors, whose sum is σ = 1340740868. Its totient is φ = 1340740866.

The previous prime is 1340740861. The next prime is 1340740873. The reversal of 1340740867 is 7680470431.

It is a balanced prime because it is at equal distance from previous prime (1340740861) and next prime (1340740873).

It is a cyclic number.

It is not a de Polignac number, because 1340740867 - 2³ = 1340740859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340740861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670370433 + 670370434.

It is an arithmetic number, because the mean of its divisors is an integer number (670370434).

Almost surely, 2^1340740867 is an apocalyptic number.

1340740867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340740867 is an equidigital number, since it uses as much as digits as its factorization.

1340740867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 1340740867 is about 36616.1285091693. The cubic root of 1340740867 is about 1102.6769147214.

The spelling of 1340740867 in words is "one billion, three hundred forty million, seven hundred forty thousand, eight hundred sixty-seven".