2086404 has 12 divisors (see below), whose sum is σ = 4868304. Its totient is φ = 695464.

The previous prime is 2086397. The next prime is 2086421. The reversal of 2086404 is 4046802.

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

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, 86922 + ... + 86945.

It is an arithmetic number, because the mean of its divisors is an integer number (405692).

2^2086404 is an apocalyptic number.

It is an amenable number.

2086404 is an abundant number, since it is smaller than the sum of its proper divisors (2781900).

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

2086404 is a wasteful number, since it uses less digits than its factorization.

2086404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173874 (or 173872 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2086404 is about 1444.4389914427. The cubic root of 2086404 is about 127.7809567507.

The spelling of 2086404 in words is "two million, eighty-six thousand, four hundred four".