340439233 has 2 divisors, whose sum is σ = 340439234. Its totient is φ = 340439232.

The previous prime is 340439173. The next prime is 340439279. The reversal of 340439233 is 332934043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215737344 + 124701889 = 14688^2 + 11167^2 .

It is a cyclic number.

It is not a de Polignac number, because 340439233 - 2²⁵ = 306884801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340439195 and 340439204.

It is not a weakly prime, because it can be changed into another prime (340439633) 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, 170219616 + 170219617.

It is an arithmetic number, because the mean of its divisors is an integer number (170219617).

Almost surely, 2^340439233 is an apocalyptic number.

It is an amenable number.

340439233 is a deficient number, since it is larger than the sum of its proper divisors (1).

340439233 is an equidigital number, since it uses as much as digits as its factorization.

340439233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 31.

The square root of 340439233 is about 18450.9954474007. The cubic root of 340439233 is about 698.2536283789.

The spelling of 340439233 in words is "three hundred forty million, four hundred thirty-nine thousand, two hundred thirty-three".