4004243 has 4 divisors (see below), whose sum is σ = 4008648. Its totient is φ = 3999840.

The previous prime is 4004237. The next prime is 4004249. The reversal of 4004243 is 3424004.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (4004237) and next prime (4004249).

It is a cyclic number.

It is not a de Polignac number, because 4004243 - 2⁴ = 4004227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4004249) 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, 278 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (1002162).

Almost surely, 2^4004243 is an apocalyptic number.

4004243 is a deficient number, since it is larger than the sum of its proper divisors (4405).

4004243 is a wasteful number, since it uses less digits than its factorization.

4004243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 4004243 is about 2001.0604688515. The cubic root of 4004243 is about 158.7962132182.

Adding to 4004243 its reverse (3424004), we get a palindrome (7428247).

The spelling of 4004243 in words is "four million, four thousand, two hundred forty-three".