2004449143 has 4 divisors (see below), whose sum is σ = 2005653240. Its totient is φ = 2003245048.

The previous prime is 2004449129. The next prime is 2004449147. The reversal of 2004449143 is 3419444002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2004449143 - 2²¹ = 2002351991 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 (2004449147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599548 + ... + 602881.

It is an arithmetic number, because the mean of its divisors is an integer number (501413310).

Almost surely, 2^2004449143 is an apocalyptic number.

2004449143 is a deficient number, since it is larger than the sum of its proper divisors (1204097).

2004449143 is a wasteful number, since it uses less digits than its factorization.

2004449143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204096.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2004449143 is about 44771.0748474950. The cubic root of 2004449143 is about 1260.8546194592.

The spelling of 2004449143 in words is "two billion, four million, four hundred forty-nine thousand, one hundred forty-three".