340026439 has 2 divisors, whose sum is σ = 340026440. Its totient is φ = 340026438.

The previous prime is 340026409. The next prime is 340026443. The reversal of 340026439 is 934620043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340026439 - 2¹³ = 340018247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340026439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340026409) 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, 170013219 + 170013220.

It is an arithmetic number, because the mean of its divisors is an integer number (170013220).

Almost surely, 2^340026439 is an apocalyptic number.

340026439 is a deficient number, since it is larger than the sum of its proper divisors (1).

340026439 is an equidigital number, since it uses as much as digits as its factorization.

340026439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 340026439 is about 18439.8058286957. The cubic root of 340026439 is about 697.9712955796.

The spelling of 340026439 in words is "three hundred forty million, twenty-six thousand, four hundred thirty-nine".