2004400 has 30 divisors (see below), whose sum is σ = 4816532. Its totient is φ = 801600.

The previous prime is 2004383. The next prime is 2004421. The reversal of 2004400 is 44002.

It is a Harshad number since it is a multiple of its sum of digits (10).

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 5 ways as a sum of consecutive naturals, for example, 2106 + ... + 2905.

2^2004400 is an apocalyptic number.

2004400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004400 is an abundant number, since it is smaller than the sum of its proper divisors (2812132).

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

2004400 is a wasteful number, since it uses less digits than its factorization.

2004400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 2004400 is about 1415.7683426324. The cubic root of 2004400 is about 126.0844315268.

Adding to 2004400 its reverse (44002), we get a palindrome (2048402).

The spelling of 2004400 in words is "two million, four thousand, four hundred".