340443439 has 16 divisors (see below), whose sum is σ = 393781248. Its totient is φ = 288302112.

The previous prime is 340443431. The next prime is 340443451. The reversal of 340443439 is 934344043.

It is not a de Polignac number, because 340443439 - 2³ = 340443431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340443431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259824 + ... + 261130.

It is an arithmetic number, because the mean of its divisors is an integer number (24611328).

Almost surely, 2^340443439 is an apocalyptic number.

340443439 is a deficient number, since it is larger than the sum of its proper divisors (53337809).

340443439 is a wasteful number, since it uses less digits than its factorization.

340443439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734.

The product of its (nonzero) digits is 62208, while the sum is 34.

The square root of 340443439 is about 18451.1094246389. The cubic root of 340443439 is about 698.2565039217.

The spelling of 340443439 in words is "three hundred forty million, four hundred forty-three thousand, four hundred thirty-nine".