240673613 has 2 divisors, whose sum is σ = 240673614. Its totient is φ = 240673612.

The previous prime is 240673597. The next prime is 240673619. The reversal of 240673613 is 316376042.

240673613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129117769 + 111555844 = 11363^2 + 10562^2 .

It is a cyclic number.

It is not a de Polignac number, because 240673613 - 2⁴ = 240673597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 240673613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240673619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120336806 + 120336807.

It is an arithmetic number, because the mean of its divisors is an integer number (120336807).

Almost surely, 2^240673613 is an apocalyptic number.

It is an amenable number.

240673613 is a deficient number, since it is larger than the sum of its proper divisors (1).

240673613 is an equidigital number, since it uses as much as digits as its factorization.

240673613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 240673613 is about 15513.6589172252. The cubic root of 240673613 is about 622.0273670337.

The spelling of 240673613 in words is "two hundred forty million, six hundred seventy-three thousand, six hundred thirteen".