340043609 has 8 divisors (see below), whose sum is σ = 346317120. Its totient is φ = 333787216.

The previous prime is 340043573. The next prime is 340043611. The reversal of 340043609 is 906340043.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340043609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340043629) 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 7 ways as a sum of consecutive naturals, for example, 39959 + ... + 47715.

It is an arithmetic number, because the mean of its divisors is an integer number (43289640).

Almost surely, 2^340043609 is an apocalyptic number.

It is an amenable number.

340043609 is a deficient number, since it is larger than the sum of its proper divisors (6273511).

340043609 is an equidigital number, since it uses as much as digits as its factorization.

340043609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 340043609 is about 18440.2713917122. The cubic root of 340043609 is about 697.9830436518.

The spelling of 340043609 in words is "three hundred forty million, forty-three thousand, six hundred nine".