4040242513 has 2 divisors, whose sum is σ = 4040242514. Its totient is φ = 4040242512.

The previous prime is 4040242489. The next prime is 4040242579. The reversal of 4040242513 is 3152420404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3132305089 + 907937424 = 55967^2 + 30132^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040242513 - 2⁹ = 4040242001 is a prime.

It is not a weakly prime, because it can be changed into another prime (4040212513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020121256 + 2020121257.

It is an arithmetic number, because the mean of its divisors is an integer number (2020121257).

Almost surely, 2^4040242513 is an apocalyptic number.

It is an amenable number.

4040242513 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040242513 is an equidigital number, since it uses as much as digits as its factorization.

4040242513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4040242513 is about 63562.9020183943. The cubic root of 4040242513 is about 1592.7067160664.

Adding to 4040242513 its reverse (3152420404), we get a palindrome (7192662917).

The spelling of 4040242513 in words is "four billion, forty million, two hundred forty-two thousand, five hundred thirteen".