2421404 has 12 divisors (see below), whose sum is σ = 4270728. Its totient is φ = 1201200.

The previous prime is 2421403. The next prime is 2421407. The reversal of 2421404 is 4041242.

2421404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1787 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (355894).

2^2421404 is an apocalyptic number.

It is an amenable number.

2421404 is a deficient number, since it is larger than the sum of its proper divisors (1849324).

2421404 is a wasteful number, since it uses less digits than its factorization.

2421404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756 (or 4754 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2421404 is about 1556.0861158689. The cubic root of 2421404 is about 134.2834277133.

Adding to 2421404 its reverse (4041242), we get a palindrome (6462646).

The spelling of 2421404 in words is "two million, four hundred twenty-one thousand, four hundred four".