1998204 has 24 divisors (see below), whose sum is σ = 5021520. Its totient is φ = 614784.

The previous prime is 1998181. The next prime is 1998209. The reversal of 1998204 is 4028991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6249 + ... + 6560.

It is an arithmetic number, because the mean of its divisors is an integer number (209230).

2^1998204 is an apocalyptic number.

It is an amenable number.

1998204 is an abundant number, since it is smaller than the sum of its proper divisors (3023316).

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

1998204 is a wasteful number, since it uses less digits than its factorization.

1998204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12829 (or 12827 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1998204 is about 1413.5784378661. The cubic root of 1998204 is about 125.9543800581.

The spelling of 1998204 in words is "one million, nine hundred ninety-eight thousand, two hundred four".