2018404 has 12 divisors (see below), whose sum is σ = 3553200. Its totient is φ = 1003208.

The previous prime is 2018383. The next prime is 2018407. The reversal of 2018404 is 4048102.

It is not an unprimeable number, because it can be changed into a prime (2018407) by changing a digit.

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, 694 + ... + 2125.

It is an arithmetic number, because the mean of its divisors is an integer number (296100).

2^2018404 is an apocalyptic number.

It is an amenable number.

2018404 is a deficient number, since it is larger than the sum of its proper divisors (1534796).

2018404 is a wasteful number, since it uses less digits than its factorization.

2018404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2018404 is about 1420.7054585663. The cubic root of 2018404 is about 126.3773853950.

The spelling of 2018404 in words is "two million, eighteen thousand, four hundred four".