2784228 has 24 divisors (see below), whose sum is σ = 6656160. Its totient is φ = 905280.

The previous prime is 2784227. The next prime is 2784239. The reversal of 2784228 is 8224872.

It is not an unprimeable number, because it can be changed into a prime (2784227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2338 + ... + 3321.

It is an arithmetic number, because the mean of its divisors is an integer number (277340).

2^2784228 is an apocalyptic number.

It is an amenable number.

2784228 is an abundant number, since it is smaller than the sum of its proper divisors (3871932).

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

2784228 is a wasteful number, since it uses less digits than its factorization.

2784228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707 (or 5705 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 2784228 is about 1668.6006112908. The cubic root of 2784228 is about 140.6808333353.

It can be divided in two parts, 27 and 84228, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 2784228 in words is "two million, seven hundred eighty-four thousand, two hundred twenty-eight".