240497 has 4 divisors (see below), whose sum is σ = 248820. Its totient is φ = 232176.

The previous prime is 240491. The next prime is 240503. The reversal of 240497 is 794042.

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

It is an interprime number because it is at equal distance from previous prime (240491) and next prime (240503).

It can be written as a sum of positive squares in 2 ways, for example, as 87616 + 152881 = 296^2 + 391^2 .

It is a cyclic number.

It is not a de Polignac number, because 240497 - 2⁶ = 240433 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 240497.

It is not an unprimeable number, because it can be changed into a prime (240491) 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, 4118 + ... + 4175.

It is an arithmetic number, because the mean of its divisors is an integer number (62205).

2²⁴⁰⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

240497 is a deficient number, since it is larger than the sum of its proper divisors (8323).

240497 is an equidigital number, since it uses as much as digits as its factorization.

240497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8322.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 240497 is about 490.4049347223. The cubic root of 240497 is about 62.1875176132.

Subtracting from 240497 its sum of digits (26), we obtain a triangular number (240471 = T₆₉₃).

It can be divided in two parts, 240 and 497, that added together give a palindrome (737).

The spelling of 240497 in words is "two hundred forty thousand, four hundred ninety-seven".