240589 has 2 divisors, whose sum is σ = 240590. Its totient is φ = 240588.

The previous prime is 240587. The next prime is 240599. The reversal of 240589 is 985042.

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., 218089 + 22500 = 467^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 240589 - 2¹ = 240587 is a prime.

Together with 240587, it forms a pair of twin primes.

240589 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120294 + 120295.

It is an arithmetic number, because the mean of its divisors is an integer number (120295).

2²⁴⁰⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

240589 is a deficient number, since it is larger than the sum of its proper divisors (1).

240589 is an equidigital number, since it uses as much as digits as its factorization.

240589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 240589 is about 490.4987257884. The cubic root of 240589 is about 62.1954463638.

The spelling of 240589 in words is "two hundred forty thousand, five hundred eighty-nine".