2421680 has 20 divisors (see below), whose sum is σ = 5630592. Its totient is φ = 968640.

The previous prime is 2421673. The next prime is 2421707. The reversal of 2421680 is 861242.

2421680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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, 15056 + ... + 15215.

2^2421680 is an apocalyptic number.

2421680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421680 is an abundant number, since it is smaller than the sum of its proper divisors (3208912).

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

2421680 is a wasteful number, since it uses less digits than its factorization.

2421680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30284 (or 30278 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2421680 is about 1556.1747973798. The cubic root of 2421680 is about 134.2885295493.

The spelling of 2421680 in words is "two million, four hundred twenty-one thousand, six hundred eighty".