2811224 has 16 divisors (see below), whose sum is σ = 5676720. Its totient is φ = 1297440.

The previous prime is 2811217. The next prime is 2811227. The reversal of 2811224 is 4221182.

It is a happy number.

2811224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2811196 and 2811205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2811227) 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, 13412 + ... + 13619.

It is an arithmetic number, because the mean of its divisors is an integer number (354795).

2^2811224 is an apocalyptic number.

It is an amenable number.

2811224 is an abundant number, since it is smaller than the sum of its proper divisors (2865496).

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

2811224 is a wasteful number, since it uses less digits than its factorization.

2811224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27050 (or 27046 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 2811224 is about 1676.6705102673. The cubic root of 2811224 is about 141.1340542235.

The spelling of 2811224 in words is "two million, eight hundred eleven thousand, two hundred twenty-four".