20026008 has 128 divisors (see below), whose sum is σ = 60480000. Its totient is φ = 6120576.

The previous prime is 20026007. The next prime is 20026009. The reversal of 20026008 is 80062002.

It is an interprime number because it is at equal distance from previous prime (20026007) and next prime (20026009).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144003 + ... + 144141.

It is an arithmetic number, because the mean of its divisors is an integer number (472500).

Almost surely, 2^20026008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20026008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30240000).

20026008 is an abundant number, since it is smaller than the sum of its proper divisors (40453992).

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

20026008 is a wasteful number, since it uses less digits than its factorization.

20026008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 196 counting only the distinct ones).

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

The square root of 20026008 is about 4475.0427930915. The cubic root of 20026008 is about 271.5593716498.

The spelling of 20026008 in words is "twenty million, twenty-six thousand, eight".