340205611 has 4 divisors (see below), whose sum is σ = 340470424. Its totient is φ = 339940800.

The previous prime is 340205573. The next prime is 340205633. The reversal of 340205611 is 116502043.

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

It is a cyclic number.

It is not a de Polignac number, because 340205611 - 2¹⁵ = 340172843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340205011) 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 in 3 ways as a sum of consecutive naturals, for example, 130470 + ... + 133051.

It is an arithmetic number, because the mean of its divisors is an integer number (85117606).

Almost surely, 2^340205611 is an apocalyptic number.

340205611 is a deficient number, since it is larger than the sum of its proper divisors (264813).

340205611 is a wasteful number, since it uses less digits than its factorization.

340205611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264812.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 340205611 is about 18444.6634829698. The cubic root of 340205611 is about 698.0938693360.

Adding to 340205611 its reverse (116502043), we get a palindrome (456707654).

The spelling of 340205611 in words is "three hundred forty million, two hundred five thousand, six hundred eleven".