2340644563 has 2 divisors, whose sum is σ = 2340644564. Its totient is φ = 2340644562.

The previous prime is 2340644543. The next prime is 2340644587. The reversal of 2340644563 is 3654460432.

It is a happy number.

2340644563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2340644563 - 2²¹ = 2338547411 is a prime.

It is not a weakly prime, because it can be changed into another prime (2340644503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170322281 + 1170322282.

It is an arithmetic number, because the mean of its divisors is an integer number (1170322282).

Almost surely, 2^2340644563 is an apocalyptic number.

2340644563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340644563 is an equidigital number, since it uses as much as digits as its factorization.

2340644563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 37.

The square root of 2340644563 is about 48380.2083811139. The cubic root of 2340644563 is about 1327.7362820904.

The spelling of 2340644563 in words is "two billion, three hundred forty million, six hundred forty-four thousand, five hundred sixty-three".