2404243 has 4 divisors (see below), whose sum is σ = 2422728. Its totient is φ = 2385760.

The previous prime is 2404229. The next prime is 2404247. The reversal of 2404243 is 3424042.

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 2404243 - 2⁵ = 2404211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2404243.

It is not an unprimeable number, because it can be changed into a prime (2404247) 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, 9046 + ... + 9307.

It is an arithmetic number, because the mean of its divisors is an integer number (605682).

2^2404243 is an apocalyptic number.

2404243 is a deficient number, since it is larger than the sum of its proper divisors (18485).

2404243 is a wasteful number, since it uses less digits than its factorization.

2404243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18484.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2404243 is about 1550.5621561227. The cubic root of 2404243 is about 133.9654436771.

Adding to 2404243 its reverse (3424042), we get a palindrome (5828285).

The spelling of 2404243 in words is "two million, four hundred four thousand, two hundred forty-three".