240573 has 4 divisors (see below), whose sum is σ = 320768. Its totient is φ = 160380.

The previous prime is 240571. The next prime is 240587. The reversal of 240573 is 375042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 240573 - 2¹ = 240571 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40093 + ... + 40098.

It is an arithmetic number, because the mean of its divisors is an integer number (80192).

2²⁴⁰⁵⁷³ is an apocalyptic number.

It is an amenable number.

240573 is a deficient number, since it is larger than the sum of its proper divisors (80195).

240573 is an equidigital number, since it uses as much as digits as its factorization.

240573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80194.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 240573 is about 490.4824155869. The cubic root of 240573 is about 62.1940675959.

The spelling of 240573 in words is "two hundred forty thousand, five hundred seventy-three".