2224765 has 4 divisors (see below), whose sum is σ = 2669724. Its totient is φ = 1779808.

The previous prime is 2224763. The next prime is 2224801. The reversal of 2224765 is 5674222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5674222 = 2 ⋅2837111.

It can be written as a sum of positive squares in 2 ways, for example, as 1758276 + 466489 = 1326^2 + 683^2 .

It is a cyclic number.

It is not a de Polignac number, because 2224765 - 2¹ = 2224763 is a prime.

It is a Duffinian number.

2224765 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2224763) 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 3 ways as a sum of consecutive naturals, for example, 222472 + ... + 222481.

It is an arithmetic number, because the mean of its divisors is an integer number (667431).

2^2224765 is an apocalyptic number.

It is an amenable number.

2224765 is a deficient number, since it is larger than the sum of its proper divisors (444959).

2224765 is an equidigital number, since it uses as much as digits as its factorization.

2224765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444958.

The product of its digits is 6720, while the sum is 28.

The square root of 2224765 is about 1491.5646147586. The cubic root of 2224765 is about 130.5453422589.

Adding to 2224765 its reverse (5674222), we get a palindrome (7898987).

The spelling of 2224765 in words is "two million, two hundred twenty-four thousand, seven hundred sixty-five".