340311563 has 4 divisors (see below), whose sum is σ = 342399528. Its totient is φ = 338223600.

The previous prime is 340311553. The next prime is 340311577. The reversal of 340311563 is 365113043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365113043 = 43 ⋅8491001.

It is a cyclic number.

It is not a de Polignac number, because 340311563 - 2⁴ = 340311547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340311523) 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 3 ways as a sum of consecutive naturals, for example, 1043738 + ... + 1044063.

It is an arithmetic number, because the mean of its divisors is an integer number (85599882).

Almost surely, 2^340311563 is an apocalyptic number.

340311563 is a deficient number, since it is larger than the sum of its proper divisors (2087965).

340311563 is a wasteful number, since it uses less digits than its factorization.

340311563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087964.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 340311563 is about 18447.5354180443. The cubic root of 340311563 is about 698.1663321470.

The spelling of 340311563 in words is "three hundred forty million, three hundred eleven thousand, five hundred sixty-three".