20089088 has 36 divisors (see below), whose sum is σ = 40563180. Its totient is φ = 9928704.

The previous prime is 20089081. The next prime is 20089103. The reversal of 20089088 is 88098002.

It can be written as a sum of positive squares in 2 ways, for example, as 13778944 + 6310144 = 3712^2 + 2512^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20089081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24428 + ... + 25236.

It is an arithmetic number, because the mean of its divisors is an integer number (1126755).

Almost surely, 2^20089088 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 20089088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20281590).

20089088 is an abundant number, since it is smaller than the sum of its proper divisors (20474092).

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

20089088 is an frugal number, since it uses more digits than its factorization.

20089088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 20089088 is about 4482.0852289978. The cubic root of 20089088 is about 271.8442014348.

The spelling of 20089088 in words is "twenty million, eighty-nine thousand, eighty-eight".