340838005 has 4 divisors (see below), whose sum is σ = 409005612. Its totient is φ = 272670400.

The previous prime is 340837999. The next prime is 340838033. The reversal of 340838005 is 500838043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 198894609 + 141943396 = 14103^2 + 11914^2 .

It is not a de Polignac number, because 340838005 - 2¹⁹ = 340313717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34083796 + ... + 34083805.

It is an arithmetic number, because the mean of its divisors is an integer number (102251403).

Almost surely, 2^340838005 is an apocalyptic number.

It is an amenable number.

340838005 is a deficient number, since it is larger than the sum of its proper divisors (68167607).

340838005 is an equidigital number, since it uses as much as digits as its factorization.

340838005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68167606.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 340838005 is about 18461.7985310208. The cubic root of 340838005 is about 698.5261541061.

The spelling of 340838005 in words is "three hundred forty million, eight hundred thirty-eight thousand, five".