340439173 has 2 divisors, whose sum is σ = 340439174. Its totient is φ = 340439172.

The previous prime is 340439167. The next prime is 340439233. The reversal of 340439173 is 371934043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306880324 + 33558849 = 17518^2 + 5793^2 .

It is a cyclic number.

It is not a de Polignac number, because 340439173 - 2²⁵ = 306884741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340439153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170219586 + 170219587.

It is an arithmetic number, because the mean of its divisors is an integer number (170219587).

Almost surely, 2^340439173 is an apocalyptic number.

It is an amenable number.

340439173 is a deficient number, since it is larger than the sum of its proper divisors (1).

340439173 is an equidigital number, since it uses as much as digits as its factorization.

340439173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 340439173 is about 18450.9938214721. The cubic root of 340439173 is about 698.2535873582.

The spelling of 340439173 in words is "three hundred forty million, four hundred thirty-nine thousand, one hundred seventy-three".