2228544 has 84 divisors (see below), whose sum is σ = 6597396. Its totient is φ = 718848.

The previous prime is 2228543. The next prime is 2228549. The reversal of 2228544 is 4458222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1440000 + 788544 = 1200^2 + 888^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30492 + ... + 30564.

2^2228544 is an apocalyptic number.

2228544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2228544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3298698).

2228544 is an abundant number, since it is smaller than the sum of its proper divisors (4368852).

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

2228544 is a wasteful number, since it uses less digits than its factorization.

2228544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 131 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 2228544 is about 1492.8308678481. The cubic root of 2228544 is about 130.6192154975.

It can be divided in two parts, 2228 and 544, that added together give a palindrome (2772).

The spelling of 2228544 in words is "two million, two hundred twenty-eight thousand, five hundred forty-four".