2243566 has 8 divisors (see below), whose sum is σ = 3624264. Its totient is φ = 1035480.

The previous prime is 2243551. The next prime is 2243587. The reversal of 2243566 is 6653422.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2⁹ + 2²¹ + 4⁸ + 3⁶ + 5⁷ + 6³ + 6⁴ .

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

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, 43120 + ... + 43171.

It is an arithmetic number, because the mean of its divisors is an integer number (453033).

2^2243566 is an apocalyptic number.

2243566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2243566 is a deficient number, since it is larger than the sum of its proper divisors (1380698).

2243566 is a wasteful number, since it uses less digits than its factorization.

2243566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86306.

The product of its digits is 8640, while the sum is 28.

The square root of 2243566 is about 1497.8537979389. The cubic root of 2243566 is about 130.9120478721.

Adding to 2243566 its reverse (6653422), we get a palindrome (8896988).

It can be divided in two parts, 2243 and 566, that added together give a square (2809 = 53²).

The spelling of 2243566 in words is "two million, two hundred forty-three thousand, five hundred sixty-six".