20026017 has 48 divisors (see below), whose sum is σ = 34077888. Its totient is φ = 11197440.

The previous prime is 20026009. The next prime is 20026033. The reversal of 20026017 is 71062002.

It is a happy number.

It is not a de Polignac number, because 20026017 - 2³ = 20026009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20026007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122778 + ... + 122940.

It is an arithmetic number, because the mean of its divisors is an integer number (709956).

Almost surely, 2^20026017 is an apocalyptic number.

It is an amenable number.

20026017 is a deficient number, since it is larger than the sum of its proper divisors (14051871).

20026017 is a wasteful number, since it uses less digits than its factorization.

20026017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 20026017 is about 4475.0437986683. The cubic root of 20026017 is about 271.5594123308.

Adding to 20026017 its reverse (71062002), we get a palindrome (91088019).

The spelling of 20026017 in words is "twenty million, twenty-six thousand, seventeen".