2199804 has 12 divisors (see below), whose sum is σ = 5132904. Its totient is φ = 733264.

The previous prime is 2199803. The next prime is 2199823. The reversal of 2199804 is 4089912.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91647 + ... + 91670.

It is an arithmetic number, because the mean of its divisors is an integer number (427742).

2^2199804 is an apocalyptic number.

It is an amenable number.

2199804 is an abundant number, since it is smaller than the sum of its proper divisors (2933100).

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

2199804 is a wasteful number, since it uses less digits than its factorization.

2199804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183324 (or 183322 counting only the distinct ones).

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

The square root of 2199804 is about 1483.1736243610. The cubic root of 2199804 is about 130.0552822080.

It can be divided in two parts, 2199 and 804, that added together give a palindrome (3003).

The spelling of 2199804 in words is "two million, one hundred ninety-nine thousand, eight hundred four".