339840029 has 2 divisors, whose sum is σ = 339840030. Its totient is φ = 339840028.

The previous prime is 339839999. The next prime is 339840031. The reversal of 339840029 is 920048933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200647225 + 139192804 = 14165^2 + 11798^2 .

It is a cyclic number.

It is not a de Polignac number, because 339840029 - 2¹⁶ = 339774493 is a prime.

Together with 339840031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 339839974 and 339840001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339840049) 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, 169920014 + 169920015.

It is an arithmetic number, because the mean of its divisors is an integer number (169920015).

Almost surely, 2^339840029 is an apocalyptic number.

It is an amenable number.

339840029 is a deficient number, since it is larger than the sum of its proper divisors (1).

339840029 is an equidigital number, since it uses as much as digits as its factorization.

339840029 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 38.

The square root of 339840029 is about 18434.7505814426. The cubic root of 339840029 is about 697.8437245070.

The spelling of 339840029 in words is "three hundred thirty-nine million, eight hundred forty thousand, twenty-nine".