2228289 has 8 divisors (see below), whose sum is σ = 3395520. Its totient is φ = 1273296.

The previous prime is 2228243. The next prime is 2228299. The reversal of 2228289 is 9828222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2228289 - 2⁹ = 2227777 is a prime.

It is a d-powerful number, because it can be written as 2³ + 2⁵ + 2¹⁷ + 8 + 2²¹ + 8 + 9 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2228209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53034 + ... + 53075.

It is an arithmetic number, because the mean of its divisors is an integer number (424440).

2^2228289 is an apocalyptic number.

It is an amenable number.

2228289 is a deficient number, since it is larger than the sum of its proper divisors (1167231).

2228289 is a wasteful number, since it uses less digits than its factorization.

2228289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106119.

The product of its digits is 9216, while the sum is 33.

The square root of 2228289 is about 1492.7454572029. The cubic root of 2228289 is about 130.6142332953.

Multiplying 2228289 by its sum of digits (33), we get a palindrome (73533537).

The spelling of 2228289 in words is "two million, two hundred twenty-eight thousand, two hundred eighty-nine".