240743 has 2 divisors, whose sum is σ = 240744. Its totient is φ = 240742.

The previous prime is 240739. The next prime is 240763. The reversal of 240743 is 347042.

It is a happy number.

It is an a-pointer prime, because the next prime (240763) can be obtained adding 240743 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240743 - 2² = 240739 is a prime.

It is a super-4 number, since 4×240743⁴ (a number of 23 digits) contains 4444 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 240743.

It is not a weakly prime, because it can be changed into another prime (240733) 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 as a sum of consecutive naturals, namely, 120371 + 120372.

It is an arithmetic number, because the mean of its divisors is an integer number (120372).

2²⁴⁰⁷⁴³ is an apocalyptic number.

240743 is a deficient number, since it is larger than the sum of its proper divisors (1).

240743 is an equidigital number, since it uses as much as digits as its factorization.

240743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 240743 is about 490.6556837539. The cubic root of 240743 is about 62.2087138807.

Adding to 240743 its reverse (347042), we get a palindrome (587785).

The spelling of 240743 in words is "two hundred forty thousand, seven hundred forty-three", and thus it is an iban number.