2002043 has 4 divisors (see below), whose sum is σ = 2026248. Its totient is φ = 1977840.

The previous prime is 2002019. The next prime is 2002061. The reversal of 2002043 is 3402002.

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 2002043 - 2⁸ = 2001787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11978 + ... + 12143.

It is an arithmetic number, because the mean of its divisors is an integer number (506562).

2^2002043 is an apocalyptic number.

2002043 is a deficient number, since it is larger than the sum of its proper divisors (24205).

2002043 is an equidigital number, since it uses as much as digits as its factorization.

2002043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24204.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 2002043 is about 1414.9356875844. The cubic root of 2002043 is about 126.0349907020.

Adding to 2002043 its reverse (3402002), we get a palindrome (5404045).

The spelling of 2002043 in words is "two million, two thousand, forty-three".