340785311 has 16 divisors (see below), whose sum is σ = 363168000. Its totient is φ = 318878208.

The previous prime is 340785259. The next prime is 340785329. The reversal of 340785311 is 113587043.

It is a cyclic number.

It is not a de Polignac number, because 340785311 - 2¹⁰ = 340784287 is a prime.

It is a super-2 number, since 2×340785311² = 232269256386733442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340785911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 729500 + ... + 729966.

It is an arithmetic number, because the mean of its divisors is an integer number (22698000).

Almost surely, 2^340785311 is an apocalyptic number.

340785311 is a deficient number, since it is larger than the sum of its proper divisors (22382689).

340785311 is a wasteful number, since it uses less digits than its factorization.

340785311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 340785311 is about 18460.3713667954. The cubic root of 340785311 is about 698.4901545661.

The spelling of 340785311 in words is "three hundred forty million, seven hundred eighty-five thousand, three hundred eleven".