240655 has 4 divisors (see below), whose sum is σ = 288792. Its totient is φ = 192520.

The previous prime is 240641. The next prime is 240659. The reversal of 240655 is 556042.

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

It is not a de Polignac number, because 240655 - 2⁵ = 240623 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24061 + ... + 24070.

It is an arithmetic number, because the mean of its divisors is an integer number (72198).

2²⁴⁰⁶⁵⁵ is an apocalyptic number.

240655 is a deficient number, since it is larger than the sum of its proper divisors (48137).

240655 is an equidigital number, since it uses as much as digits as its factorization.

240655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48136.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 240655 is about 490.5659996372. The cubic root of 240655 is about 62.2011331355.

Adding to 240655 its reverse (556042), we get a palindrome (796697).

The spelling of 240655 in words is "two hundred forty thousand, six hundred fifty-five".