20027088 has 140 divisors (see below), whose sum is σ = 62209188. Its totient is φ = 6220800.

The previous prime is 20027087. The next prime is 20027113. The reversal of 20027088 is 88072002.

It can be written as a sum of positive squares in 2 ways, for example, as 17740944 + 2286144 = 4212^2 + 1512^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20027087) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 198238 + ... + 198338.

Almost surely, 2^20027088 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 20027088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31104594).

20027088 is an abundant number, since it is smaller than the sum of its proper divisors (42182100).

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

20027088 is a wasteful number, since it uses less digits than its factorization.

20027088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 20027088 is about 4475.1634607017. The cubic root of 20027088 is about 271.5642532826.

The spelling of 20027088 in words is "twenty million, twenty-seven thousand, eighty-eight".