240459 has 4 divisors (see below), whose sum is σ = 320616. Its totient is φ = 160304.

The previous prime is 240437. The next prime is 240473. The reversal of 240459 is 954042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240459 - 2⁸ = 240203 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (240479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40074 + ... + 40079.

It is an arithmetic number, because the mean of its divisors is an integer number (80154).

2²⁴⁰⁴⁵⁹ is an apocalyptic number.

240459 is a deficient number, since it is larger than the sum of its proper divisors (80157).

240459 is an equidigital number, since it uses as much as digits as its factorization.

240459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80156.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 240459 is about 490.3661896991. The cubic root of 240459 is about 62.1842421044.

The spelling of 240459 in words is "two hundred forty thousand, four hundred fifty-nine".