4240323 has 8 divisors (see below), whose sum is σ = 6282000. Its totient is φ = 2826864.

The previous prime is 4240319. The next prime is 4240381. The reversal of 4240323 is 3230424.

It is not a de Polignac number, because 4240323 - 2² = 4240319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4240296 and 4240305.

It is not an unprimeable number, because it can be changed into a prime (4240823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78498 + ... + 78551.

It is an arithmetic number, because the mean of its divisors is an integer number (785250).

Almost surely, 2^4240323 is an apocalyptic number.

4240323 is a deficient number, since it is larger than the sum of its proper divisors (2041677).

4240323 is a wasteful number, since it uses less digits than its factorization.

4240323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157058 (or 157052 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 4240323 is about 2059.2044580371. The cubic root of 4240323 is about 161.8575565448.

Adding to 4240323 its reverse (3230424), we get a palindrome (7470747).

The spelling of 4240323 in words is "four million, two hundred forty thousand, three hundred twenty-three".