2403841 has 4 divisors (see below), whose sum is σ = 2622384. Its totient is φ = 2185300.

The previous prime is 2403809. The next prime is 2403859. The reversal of 2403841 is 1483042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2403841 - 2⁵ = 2403809 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2403881) 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, 109255 + ... + 109276.

It is an arithmetic number, because the mean of its divisors is an integer number (655596).

2^2403841 is an apocalyptic number.

It is an amenable number.

2403841 is a deficient number, since it is larger than the sum of its proper divisors (218543).

2403841 is a wasteful number, since it uses less digits than its factorization.

2403841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218542.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2403841 is about 1550.4325202988. The cubic root of 2403841 is about 133.9579767238.

Adding to 2403841 its reverse (1483042), we get a palindrome (3886883).

The spelling of 2403841 in words is "two million, four hundred three thousand, eight hundred forty-one".