20006260 has 12 divisors (see below), whose sum is σ = 42013188. Its totient is φ = 8002496.

The previous prime is 20006243. The next prime is 20006279. The reversal of 20006260 is 6260002.

It can be written as a sum of positive squares in 2 ways, for example, as 8797156 + 11209104 = 2966^2 + 3348^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500137 + ... + 500176.

It is an arithmetic number, because the mean of its divisors is an integer number (3501099).

Almost surely, 2^20006260 is an apocalyptic number.

20006260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20006260 is an abundant number, since it is smaller than the sum of its proper divisors (22006928).

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

20006260 is a wasteful number, since it uses less digits than its factorization.

20006260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000322 (or 1000320 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20006260 is about 4472.8357895188. The cubic root of 20006260 is about 271.4700791290.

Adding to 20006260 its reverse (6260002), we get a palindrome (26266262).

The spelling of 20006260 in words is "twenty million, six thousand, two hundred sixty".