20641106 has 8 divisors (see below), whose sum is σ = 32591280. Its totient is φ = 9777348.

The previous prime is 20641099. The next prime is 20641109. The reversal of 20641106 is 60114602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20641109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271556 + ... + 271631.

It is an arithmetic number, because the mean of its divisors is an integer number (4073910).

Almost surely, 2^20641106 is an apocalyptic number.

20641106 is a deficient number, since it is larger than the sum of its proper divisors (11950174).

20641106 is a wasteful number, since it uses less digits than its factorization.

20641106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543208.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20641106 is about 4543.2483973474. The cubic root of 20641106 is about 274.3116935286.

Adding to 20641106 its reverse (60114602), we get a palindrome (80755708).

The spelling of 20641106 in words is "twenty million, six hundred forty-one thousand, one hundred six".