240343 has 4 divisors (see below), whose sum is σ = 248128. Its totient is φ = 232560.

The previous prime is 240341. The next prime is 240347. The reversal of 240343 is 343042.

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

It is a cyclic number.

It is not a de Polignac number, because 240343 - 2¹ = 240341 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 (240341) 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, 3846 + ... + 3907.

It is an arithmetic number, because the mean of its divisors is an integer number (62032).

2²⁴⁰³⁴³ is an apocalyptic number.

240343 is a deficient number, since it is larger than the sum of its proper divisors (7785).

240343 is an equidigital number, since it uses as much as digits as its factorization.

240343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7784.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 240343 is about 490.2478964769. The cubic root of 240343 is about 62.1742410476.

Adding to 240343 its reverse (343042), we get a palindrome (583385).

The spelling of 240343 in words is "two hundred forty thousand, three hundred forty-three", and thus it is an iban number.