20002206 has 16 divisors (see below), whose sum is σ = 45719424. Its totient is φ = 5714904.

The previous prime is 20002201. The next prime is 20002261. The reversal of 20002206 is 60220002.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20002191 and 20002200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002201) 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 7 ways as a sum of consecutive naturals, for example, 238080 + ... + 238163.

It is an arithmetic number, because the mean of its divisors is an integer number (2857464).

Almost surely, 2^20002206 is an apocalyptic number.

20002206 is an abundant number, since it is smaller than the sum of its proper divisors (25717218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20002206 is a wasteful number, since it uses less digits than its factorization.

20002206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476255.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20002206 is about 4472.3825864968. The cubic root of 20002206 is about 271.4517413014.

Adding to 20002206 its reverse (60220002), we get a palindrome (80222208).

The spelling of 20002206 in words is "twenty million, two thousand, two hundred six".