2189228 has 12 divisors (see below), whose sum is σ = 3843840. Its totient is φ = 1090992.

The previous prime is 2189227. The next prime is 2189249. The reversal of 2189228 is 8229812.

2189228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 2 + 1 + 8⁵ + 9⁵ + 2⁷ + 2⁷ + 8⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 2189194 and 2189203.

It is not an unprimeable number, because it can be changed into a prime (2189221) 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 3 ways as a sum of consecutive naturals, for example, 818 + ... + 2246.

It is an arithmetic number, because the mean of its divisors is an integer number (320320).

2^2189228 is an apocalyptic number.

It is an amenable number.

2189228 is a deficient number, since it is larger than the sum of its proper divisors (1654612).

2189228 is a wasteful number, since it uses less digits than its factorization.

2189228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1814 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 2189228 is about 1479.6040010760. The cubic root of 2189228 is about 129.8465249966.

The spelling of 2189228 in words is "two million, one hundred eighty-nine thousand, two hundred twenty-eight".