1340223707 has 2 divisors, whose sum is σ = 1340223708. Its totient is φ = 1340223706.

The previous prime is 1340223701. The next prime is 1340223733. The reversal of 1340223707 is 7073220431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340223707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1340223707.

It is not a weakly prime, because it can be changed into another prime (1340223701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670111853 + 670111854.

It is an arithmetic number, because the mean of its divisors is an integer number (670111854).

Almost surely, 2^1340223707 is an apocalyptic number.

1340223707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340223707 is an equidigital number, since it uses as much as digits as its factorization.

1340223707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 1340223707 is about 36609.0659126944. The cubic root of 1340223707 is about 1102.5351190559.

The spelling of 1340223707 in words is "one billion, three hundred forty million, two hundred twenty-three thousand, seven hundred seven".