2043804 has 48 divisors (see below), whose sum is σ = 5644800. Its totient is φ = 563136.

The previous prime is 2043793. The next prime is 2043817. The reversal of 2043804 is 4083402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2017 + ... + 2855.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

2^2043804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2043804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2822400).

2043804 is an abundant number, since it is smaller than the sum of its proper divisors (3600996).

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

2043804 is a wasteful number, since it uses less digits than its factorization.

2043804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2043804 is about 1429.6167318551. The cubic root of 2043804 is about 126.9052965416.

The spelling of 2043804 in words is "two million, forty-three thousand, eight hundred four".