2001204044 has 24 divisors (see below), whose sum is σ = 4140423840. Its totient is φ = 828084096.

The previous prime is 2001204019. The next prime is 2001204053. The reversal of 2001204044 is 4404021002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231457 + ... + 1233080.

It is an arithmetic number, because the mean of its divisors is an integer number (172517660).

Almost surely, 2^2001204044 is an apocalyptic number.

It is an amenable number.

2001204044 is an abundant number, since it is smaller than the sum of its proper divisors (2139219796).

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

2001204044 is a wasteful number, since it uses less digits than its factorization.

2001204044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464577 (or 2464575 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2001204044 is about 44734.8191457169. The cubic root of 2001204044 is about 1260.1738325715.

Adding to 2001204044 its reverse (4404021002), we get a palindrome (6405225046).

The spelling of 2001204044 in words is "two billion, one million, two hundred four thousand, forty-four".