2340638543 has 2 divisors, whose sum is σ = 2340638544. Its totient is φ = 2340638542.

The previous prime is 2340638497. The next prime is 2340638569. The reversal of 2340638543 is 3458360432.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2340638543 - 2¹⁸ = 2340376399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2340638497 and 2340638506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2340638593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170319271 + 1170319272.

It is an arithmetic number, because the mean of its divisors is an integer number (1170319272).

Almost surely, 2^2340638543 is an apocalyptic number.

2340638543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340638543 is an equidigital number, since it uses as much as digits as its factorization.

2340638543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 38.

The square root of 2340638543 is about 48380.1461655502. The cubic root of 2340638543 is about 1327.7351438029.

Adding to 2340638543 its reverse (3458360432), we get a palindrome (5798998975).

The spelling of 2340638543 in words is "two billion, three hundred forty million, six hundred thirty-eight thousand, five hundred forty-three".