240985 has 4 divisors (see below), whose sum is σ = 289188. Its totient is φ = 192784.

The previous prime is 240967. The next prime is 240997. The reversal of 240985 is 589042.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 143641 + 97344 = 379^2 + 312^2 .

It is a cyclic number.

It is not a de Polignac number, because 240985 - 2⁵ = 240953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 24094 + ... + 24103.

It is an arithmetic number, because the mean of its divisors is an integer number (72297).

2²⁴⁰⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

240985 is a deficient number, since it is larger than the sum of its proper divisors (48203).

240985 is an equidigital number, since it uses as much as digits as its factorization.

240985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48202.

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

The square root of 240985 is about 490.9022305918. The cubic root of 240985 is about 62.2295514090.

It can be divided in two parts, 240 and 985, that added together give a triangular number (1225 = T₄₉).

The spelling of 240985 in words is "two hundred forty thousand, nine hundred eighty-five".