20260206 has 20 divisors (see below), whose sum is σ = 45398232. Its totient is φ = 6753348.

The previous prime is 20260199. The next prime is 20260211. The reversal of 20260206 is 60206202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 62370 + ... + 62693.

Almost surely, 2^20260206 is an apocalyptic number.

20260206 is an abundant number, since it is smaller than the sum of its proper divisors (25138026).

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

20260206 is a wasteful number, since it uses less digits than its factorization.

20260206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125077 (or 125068 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20260206 is about 4501.1338571520. The cubic root of 20260206 is about 272.6138726730.

Adding to 20260206 its reverse (60206202), we get a palindrome (80466408).

The spelling of 20260206 in words is "twenty million, two hundred sixty thousand, two hundred six".