2002343999 has 4 divisors (see below), whose sum is σ = 2021784336. Its totient is φ = 1982903664.

The previous prime is 2002343989. The next prime is 2002344017. The reversal of 2002343999 is 9993432002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002343999 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 (2002343969) 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 3 ways as a sum of consecutive naturals, for example, 9720014 + ... + 9720219.

It is an arithmetic number, because the mean of its divisors is an integer number (505446084).

Almost surely, 2^2002343999 is an apocalyptic number.

2002343999 is a deficient number, since it is larger than the sum of its proper divisors (19440337).

2002343999 is a wasteful number, since it uses less digits than its factorization.

2002343999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19440336.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 2002343999 is about 44747.5585814467. The cubic root of 2002343999 is about 1260.4130666773.

The spelling of 2002343999 in words is "two billion, two million, three hundred forty-three thousand, nine hundred ninety-nine".