2228444 has 12 divisors (see below), whose sum is σ = 3927000. Its totient is φ = 1106448.

The previous prime is 2228437. The next prime is 2228449. The reversal of 2228444 is 4448222.

It is a super-2 number, since 2×2228444² = 9931925322272, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁷ + 2²¹ + 8 + 4 + 4² + 4³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274 + ... + 2465.

It is an arithmetic number, because the mean of its divisors is an integer number (327250).

2^2228444 is an apocalyptic number.

It is an amenable number.

2228444 is a deficient number, since it is larger than the sum of its proper divisors (1698556).

2228444 is a wasteful number, since it uses less digits than its factorization.

2228444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892 (or 3890 counting only the distinct ones).

The product of its digits is 4096, while the sum is 26.

The square root of 2228444 is about 1492.7973740599. The cubic root of 2228444 is about 130.6172617380.

The spelling of 2228444 in words is "two million, two hundred twenty-eight thousand, four hundred forty-four".