2404039 has 4 divisors (see below), whose sum is σ = 2622600. Its totient is φ = 2185480.

The previous prime is 2404037. The next prime is 2404043. The reversal of 2404039 is 9304042.

2404039 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2404039 - 2¹ = 2404037 is a prime.

It is an Ulam number.

It is a Duffinian number.

2404039 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404033) 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, 109264 + ... + 109285.

It is an arithmetic number, because the mean of its divisors is an integer number (655650).

2^2404039 is an apocalyptic number.

2404039 is a deficient number, since it is larger than the sum of its proper divisors (218561).

2404039 is a wasteful number, since it uses less digits than its factorization.

2404039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218560.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2404039 is about 1550.4963721338. The cubic root of 2404039 is about 133.9616545810.

The spelling of 2404039 in words is "two million, four hundred four thousand, thirty-nine".