20088189 has 32 divisors (see below), whose sum is σ = 32716800. Its totient is φ = 12080880.

The previous prime is 20088163. The next prime is 20088209. The reversal of 20088189 is 98188002.

It is not a de Polignac number, because 20088189 - 2⁵ = 20088157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20088119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70842 + ... + 71124.

It is an arithmetic number, because the mean of its divisors is an integer number (1022400).

Almost surely, 2^20088189 is an apocalyptic number.

It is an amenable number.

20088189 is a deficient number, since it is larger than the sum of its proper divisors (12628611).

20088189 is a wasteful number, since it uses less digits than its factorization.

20088189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 20088189 is about 4481.9849397337. The cubic root of 20088189 is about 271.8401463049.

The spelling of 20088189 in words is "twenty million, eighty-eight thousand, one hundred eighty-nine".