20089233 has 12 divisors (see below), whose sum is σ = 29057028. Its totient is φ = 13374720.

The previous prime is 20089231. The next prime is 20089247. The reversal of 20089233 is 33298002.

It can be written as a sum of positive squares in 2 ways, for example, as 18378369 + 1710864 = 4287^2 + 1308^2 .

It is not a de Polignac number, because 20089233 - 2¹ = 20089231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20089197 and 20089206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20089231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10813 + ... + 12533.

It is an arithmetic number, because the mean of its divisors is an integer number (2421419).

Almost surely, 2^20089233 is an apocalyptic number.

It is an amenable number.

20089233 is a deficient number, since it is larger than the sum of its proper divisors (8967795).

20089233 is a wasteful number, since it uses less digits than its factorization.

20089233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024 (or 3021 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20089233 is about 4482.1014044754. The cubic root of 20089233 is about 271.8448554767.

The spelling of 20089233 in words is "twenty million, eighty-nine thousand, two hundred thirty-three".