2421808 has 20 divisors (see below), whose sum is σ = 4897008. Its totient is φ = 1158080.

The previous prime is 2421791. The next prime is 2421817. The reversal of 2421808 is 8081242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2923 + ... + 3658.

2^2421808 is an apocalyptic number.

It is an amenable number.

2421808 is an abundant number, since it is smaller than the sum of its proper divisors (2475200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2421808 is a wasteful number, since it uses less digits than its factorization.

2421808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612 (or 6606 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 2421808 is about 1556.2159233217. The cubic root of 2421808 is about 134.2908954866.

The spelling of 2421808 in words is "two million, four hundred twenty-one thousand, eight hundred eight".