240307 has 4 divisors (see below), whose sum is σ = 244440. Its totient is φ = 236176.

The previous prime is 240287. The next prime is 240319. The reversal of 240307 is 703042.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240347) 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, 1978 + ... + 2095.

It is an arithmetic number, because the mean of its divisors is an integer number (61110).

2²⁴⁰³⁰⁷ is an apocalyptic number.

240307 is a deficient number, since it is larger than the sum of its proper divisors (4133).

240307 is an equidigital number, since it uses as much as digits as its factorization.

240307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 240307 is about 490.2111789831. The cubic root of 240307 is about 62.1711366171.

Adding to 240307 its reverse (703042), we get a palindrome (943349).

The spelling of 240307 in words is "two hundred forty thousand, three hundred seven", and thus it is an iban number.