2002443 has 8 divisors (see below), whose sum is σ = 2677248. Its totient is φ = 1331304.

The previous prime is 2002417. The next prime is 2002453. The reversal of 2002443 is 3442002.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-2002443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002453) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 846 + ... + 2172.

It is an arithmetic number, because the mean of its divisors is an integer number (334656).

2^2002443 is an apocalyptic number.

2002443 is a deficient number, since it is larger than the sum of its proper divisors (674805).

2002443 is a wasteful number, since it uses less digits than its factorization.

2002443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2002443 is about 1415.0770297055. The cubic root of 2002443 is about 126.0433839015.

Adding to 2002443 its reverse (3442002), we get a palindrome (5444445).

The spelling of 2002443 in words is "two million, two thousand, four hundred forty-three".