20020006 has 8 divisors (see below), whose sum is σ = 30053520. Its totient is φ = 10002168.

The previous prime is 20020001. The next prime is 20020019. The reversal of 20020006 is 60002002.

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 = 20019974 and 20020001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020001) 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, 100 + ... + 6328.

It is an arithmetic number, because the mean of its divisors is an integer number (3756690).

Almost surely, 2^20020006 is an apocalyptic number.

20020006 is a deficient number, since it is larger than the sum of its proper divisors (10033514).

20020006 is a wasteful number, since it uses less digits than its factorization.

20020006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7838.

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

The square root of 20020006 is about 4474.3721347246. The cubic root of 20020006 is about 271.5322392294.

Adding to 20020006 its reverse (60002002), we get a palindrome (80022008).

The spelling of 20020006 in words is "twenty million, twenty thousand, six".