1806340339 has 2 divisors, whose sum is σ = 1806340340. Its totient is φ = 1806340338.

The previous prime is 1806340307. The next prime is 1806340379. The reversal of 1806340339 is 9330436081.

It is a weak prime.

It is an emirp because it is prime and its reverse (9330436081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1806340339 - 2⁵ = 1806340307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1806340298 and 1806340307.

It is not a weakly prime, because it can be changed into another prime (1806340379) 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, 903170169 + 903170170.

It is an arithmetic number, because the mean of its divisors is an integer number (903170170).

Almost surely, 2^1806340339 is an apocalyptic number.

1806340339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1806340339 is an equidigital number, since it uses as much as digits as its factorization.

1806340339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1806340339 is about 42501.0627984760. The cubic root of 1806340339 is about 1217.8669929078.

The spelling of 1806340339 in words is "one billion, eight hundred six million, three hundred forty thousand, three hundred thirty-nine".