2002403543 has 8 divisors (see below), whose sum is σ = 2301106080. Its totient is φ = 1706862240.

The previous prime is 2002403527. The next prime is 2002403549. The reversal of 2002403543 is 3453042002.

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 2002403543 - 2⁴ = 2002403527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002403549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788948 + ... + 791481.

It is an arithmetic number, because the mean of its divisors is an integer number (287638260).

Almost surely, 2^2002403543 is an apocalyptic number.

2002403543 is a deficient number, since it is larger than the sum of its proper divisors (298702537).

2002403543 is a wasteful number, since it uses less digits than its factorization.

2002403543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580617.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 2002403543 is about 44748.2239088883. The cubic root of 2002403543 is about 1260.4255602501.

Adding to 2002403543 its reverse (3453042002), we get a palindrome (5455445545).

The spelling of 2002403543 in words is "two billion, two million, four hundred three thousand, five hundred forty-three".