240330689 has 2 divisors, whose sum is σ = 240330690. Its totient is φ = 240330688.

The previous prime is 240330653. The next prime is 240330709. The reversal of 240330689 is 986033042.

It is a happy number.

240330689 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., 224490289 + 15840400 = 14983^2 + 3980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240330689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240330619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120165344 + 120165345.

It is an arithmetic number, because the mean of its divisors is an integer number (120165345).

Almost surely, 2^240330689 is an apocalyptic number.

It is an amenable number.

240330689 is a deficient number, since it is larger than the sum of its proper divisors (1).

240330689 is an equidigital number, since it uses as much as digits as its factorization.

240330689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 240330689 is about 15502.6026524581. The cubic root of 240330689 is about 621.7317945346.

The spelling of 240330689 in words is "two hundred forty million, three hundred thirty thousand, six hundred eighty-nine".