2004452189 has 8 divisors (see below), whose sum is σ = 2082182520. Its totient is φ = 1927296000.

The previous prime is 2004452143. The next prime is 2004452207. The reversal of 2004452189 is 9812544002.

It can be written as a sum of positive squares in 4 ways, for example, as 1200276025 + 804176164 = 34645^2 + 28358^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2004452189 - 2¹² = 2004448093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004452129) by changing a digit.

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, 136412 + ... + 150389.

It is an arithmetic number, because the mean of its divisors is an integer number (260272815).

Almost surely, 2^2004452189 is an apocalyptic number.

2004452189 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2004452189 is a deficient number, since it is larger than the sum of its proper divisors (77730331).

2004452189 is a wasteful number, since it uses less digits than its factorization.

2004452189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287071.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2004452189 is about 44771.1088649812. The cubic root of 2004452189 is about 1260.8552581320.

The spelling of 2004452189 in words is "two billion, four million, four hundred fifty-two thousand, one hundred eighty-nine".