340446439 has 2 divisors, whose sum is σ = 340446440. Its totient is φ = 340446438.

The previous prime is 340446383. The next prime is 340446443. The reversal of 340446439 is 934644043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340446439 - 2¹⁹ = 339922151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340446398 and 340446407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340446839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170223219 + 170223220.

It is an arithmetic number, because the mean of its divisors is an integer number (170223220).

Almost surely, 2^340446439 is an apocalyptic number.

340446439 is a deficient number, since it is larger than the sum of its proper divisors (1).

340446439 is an equidigital number, since it uses as much as digits as its factorization.

340446439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 37.

The square root of 340446439 is about 18451.1907203844. The cubic root of 340446439 is about 698.2585549362.

The spelling of 340446439 in words is "three hundred forty million, four hundred forty-six thousand, four hundred thirty-nine".