2605804 has 12 divisors (see below), whose sum is σ = 4579344. Its totient is φ = 1297424.

The previous prime is 2605787. The next prime is 2605819. The reversal of 2605804 is 4085062.

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, 187 + ... + 2290.

It is an arithmetic number, because the mean of its divisors is an integer number (381612).

2^2605804 is an apocalyptic number.

It is an amenable number.

2605804 is a deficient number, since it is larger than the sum of its proper divisors (1973540).

2605804 is a wasteful number, since it uses less digits than its factorization.

2605804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744 (or 2742 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2605804 is about 1614.2502903825. The cubic root of 2605804 is about 137.6091298927.

The spelling of 2605804 in words is "two million, six hundred five thousand, eight hundred four".