20020206 has 16 divisors (see below), whose sum is σ = 40347648. Its totient is φ = 6622200.

The previous prime is 20020199. The next prime is 20020207. The reversal of 20020206 is 60202002.

It is a junction number, because it is equal to n+sod(n) for n = 20020191 and 20020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11950 + ... + 13521.

It is an arithmetic number, because the mean of its divisors is an integer number (2521728).

Almost surely, 2^20020206 is an apocalyptic number.

20020206 is an abundant number, since it is smaller than the sum of its proper divisors (20327442).

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

20020206 is a wasteful number, since it uses less digits than its factorization.

20020206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25607.

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

The square root of 20020206 is about 4474.3944841732. The cubic root of 20020206 is about 271.5331434293.

Adding to 20020206 its reverse (60202002), we get a palindrome (80222208).

The spelling of 20020206 in words is "twenty million, twenty thousand, two hundred six".