2004001044 has 12 divisors (see below), whose sum is σ = 4676002464. Its totient is φ = 668000344.

The previous prime is 2004001039. The next prime is 2004001091. The reversal of 2004001044 is 4401004002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83500032 + ... + 83500055.

It is an arithmetic number, because the mean of its divisors is an integer number (389666872).

Almost surely, 2^2004001044 is an apocalyptic number.

It is an amenable number.

2004001044 is an abundant number, since it is smaller than the sum of its proper divisors (2672001420).

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

2004001044 is a wasteful number, since it uses less digits than its factorization.

2004001044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167000094 (or 167000092 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2004001044 is about 44766.0702318173. The cubic root of 2004001044 is about 1260.7606568523.

Adding to 2004001044 its reverse (4401004002), we get a palindrome (6405005046).

The spelling of 2004001044 in words is "two billion, four million, one thousand, forty-four".