340416565 has 4 divisors (see below), whose sum is σ = 408499884. Its totient is φ = 272333248.

The previous prime is 340416547. The next prime is 340416569. The reversal of 340416565 is 565614043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565614043 = 21377 ⋅26459.

It can be written as a sum of positive squares in 2 ways, for example, as 148815601 + 191600964 = 12199^2 + 13842^2 .

It is a cyclic number.

It is not a de Polignac number, because 340416565 - 2⁵ = 340416533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340416565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340416569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34041652 + ... + 34041661.

It is an arithmetic number, because the mean of its divisors is an integer number (102124971).

Almost surely, 2^340416565 is an apocalyptic number.

It is an amenable number.

340416565 is a deficient number, since it is larger than the sum of its proper divisors (68083319).

340416565 is an equidigital number, since it uses as much as digits as its factorization.

340416565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68083318.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 340416565 is about 18450.3811613744. The cubic root of 340416565 is about 698.2381303957.

The spelling of 340416565 in words is "three hundred forty million, four hundred sixteen thousand, five hundred sixty-five".