2405604 has 12 divisors (see below), whose sum is σ = 5613104. Its totient is φ = 801864.

The previous prime is 2405591. The next prime is 2405621. The reversal of 2405604 is 4065042.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 100222 + ... + 100245.

2^2405604 is an apocalyptic number.

It is an amenable number.

2405604 is an abundant number, since it is smaller than the sum of its proper divisors (3207500).

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

2405604 is a wasteful number, since it uses less digits than its factorization.

2405604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200474 (or 200472 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2405604 is about 1551.0009671177. Note that the first 3 decimals coincide. The cubic root of 2405604 is about 133.9907174085.

The spelling of 2405604 in words is "two million, four hundred five thousand, six hundred four".