2244581 has 4 divisors (see below), whose sum is σ = 2257164. Its totient is φ = 2232000.

The previous prime is 2244577. The next prime is 2244587. The reversal of 2244581 is 1854422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 312481 + 1932100 = 559^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244581 - 2² = 2244577 is a prime.

It is a super-2 number, since 2×2244581² = 10076287731122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2244581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244587) 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, 6020 + ... + 6381.

It is an arithmetic number, because the mean of its divisors is an integer number (564291).

2^2244581 is an apocalyptic number.

It is an amenable number.

2244581 is a deficient number, since it is larger than the sum of its proper divisors (12583).

2244581 is a wasteful number, since it uses less digits than its factorization.

2244581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12582.

The product of its digits is 2560, while the sum is 26.

The square root of 2244581 is about 1498.1925777416. The cubic root of 2244581 is about 130.9317866415.

The spelling of 2244581 in words is "two million, two hundred forty-four thousand, five hundred eighty-one".