4240343 has 4 divisors (see below), whose sum is σ = 4343808. Its totient is φ = 4136880.

The previous prime is 4240319. The next prime is 4240381. The reversal of 4240343 is 3430424.

It is a happy number.

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 4240343 - 2⁶ = 4240279 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 (4240043) 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, 51671 + ... + 51752.

It is an arithmetic number, because the mean of its divisors is an integer number (1085952).

Almost surely, 2^4240343 is an apocalyptic number.

4240343 is a deficient number, since it is larger than the sum of its proper divisors (103465).

4240343 is a wasteful number, since it uses less digits than its factorization.

4240343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103464.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4240343 is about 2059.2093142757. The cubic root of 4240343 is about 161.8578110180.

Adding to 4240343 its reverse (3430424), we get a palindrome (7670767).

The spelling of 4240343 in words is "four million, two hundred forty thousand, three hundred forty-three".