240005 has 8 divisors (see below), whose sum is σ = 300672. Its totient is φ = 183568.

The previous prime is 239999. The next prime is 240007. The reversal of 240005 is 500042.

240005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240005 - 2¹⁴ = 223621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929 + ... + 1158.

It is an arithmetic number, because the mean of its divisors is an integer number (37584).

2²⁴⁰⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

240005 is a deficient number, since it is larger than the sum of its proper divisors (60667).

240005 is a wasteful number, since it uses less digits than its factorization.

240005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 240005 is about 489.9030516337. The cubic root of 240005 is about 62.1450816762.

Adding to 240005 its reverse (500042), we get a palindrome (740047).

The spelling of 240005 in words is "two hundred forty thousand, five".