2002021006 has 8 divisors (see below), whose sum is σ = 3003249240. Its totient is φ = 1000937928.

The previous prime is 2002021001. The next prime is 2002021019. The reversal of 2002021006 is 6001202002.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002021001) 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 3 ways as a sum of consecutive naturals, for example, 10005 + ... + 64063.

It is an arithmetic number, because the mean of its divisors is an integer number (375406155).

Almost surely, 2^2002021006 is an apocalyptic number.

2002021006 is a deficient number, since it is larger than the sum of its proper divisors (1001228234).

2002021006 is a wasteful number, since it uses less digits than its factorization.

2002021006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72578.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2002021006 is about 44743.9493786590. The cubic root of 2002021006 is about 1260.3452916946.

Adding to 2002021006 its reverse (6001202002), we get a palindrome (8003223008).

The spelling of 2002021006 in words is "two billion, two million, twenty-one thousand, six".