4243023 has 24 divisors (see below), whose sum is σ = 6697600. Its totient is φ = 2676888.

The previous prime is 4243009. The next prime is 4243039. The reversal of 4243023 is 3203424.

It is not a de Polignac number, because 4243023 - 2⁵ = 4242991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4242987 and 4243005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4158 + ... + 5076.

Almost surely, 2^4243023 is an apocalyptic number.

4243023 is a deficient number, since it is larger than the sum of its proper divisors (2454577).

4243023 is an equidigital number, since it uses as much as digits as its factorization.

4243023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 941 counting only the distinct ones).

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

The square root of 4243023 is about 2059.8599466954. The cubic root of 4243023 is about 161.8919031956.

Adding to 4243023 its reverse (3203424), we get a palindrome (7446447).

The spelling of 4243023 in words is "four million, two hundred forty-three thousand, twenty-three".