2228928 has 112 divisors (see below), whose sum is σ = 6827520. Its totient is φ = 635904.

The previous prime is 2228927. The next prime is 2228939. The reversal of 2228928 is 8298222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47401 + ... + 47447.

It is an arithmetic number, because the mean of its divisors is an integer number (60960).

2^2228928 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 2228928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3413760).

2228928 is an abundant number, since it is smaller than the sum of its proper divisors (4598592).

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

2228928 is a wasteful number, since it uses less digits than its factorization.

2228928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 84 counting only the distinct ones).

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

The square root of 2228928 is about 1492.9594770120. The cubic root of 2228928 is about 130.6267173908.

The spelling of 2228928 in words is "two million, two hundred twenty-eight thousand, nine hundred twenty-eight".