20080206 has 12 divisors (see below), whose sum is σ = 43507152. Its totient is φ = 6693396.

The previous prime is 20080199. The next prime is 20080211. The reversal of 20080206 is 60208002.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1115567 = 20080206 / (2 + 0 + 0 + 8 + 0 + 2 + 0 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 557766 + ... + 557801.

It is an arithmetic number, because the mean of its divisors is an integer number (3625596).

Almost surely, 2^20080206 is an apocalyptic number.

20080206 is an abundant number, since it is smaller than the sum of its proper divisors (23426946).

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

20080206 is a wasteful number, since it uses less digits than its factorization.

20080206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115575 (or 1115572 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20080206 is about 4481.0942859976. The cubic root of 20080206 is about 271.8041319847.

Adding to 20080206 its reverse (60208002), we get a palindrome (80288208).

The spelling of 20080206 in words is "twenty million, eighty thousand, two hundred six".