20002006 has 8 divisors (see below), whose sum is σ = 30970944. Its totient is φ = 9678360.

The previous prime is 20001983. The next prime is 20002007. The reversal of 20002006 is 60020002.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20001983 and 20002001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161245 + ... + 161368.

It is an arithmetic number, because the mean of its divisors is an integer number (3871368).

Almost surely, 2^20002006 is an apocalyptic number.

20002006 is a deficient number, since it is larger than the sum of its proper divisors (10968938).

20002006 is a wasteful number, since it uses less digits than its factorization.

20002006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322646.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20002006 is about 4472.3602269942. The cubic root of 20002006 is about 271.4508365590.

Adding to 20002006 its reverse (60020002), we get a palindrome (80022008).

The spelling of 20002006 in words is "twenty million, two thousand, six".