2243765 has 16 divisors (see below), whose sum is σ = 2851200. Its totient is φ = 1691712.

The previous prime is 2243753. The next prime is 2243771. The reversal of 2243765 is 5673422.

2243765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2243765 - 2¹⁸ = 1981621 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 2²¹ + 4⁵ + 3¹⁰ + 7 + 6³ + 5⁷ .

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12446 + ... + 12624.

It is an arithmetic number, because the mean of its divisors is an integer number (178200).

2^2243765 is an apocalyptic number.

It is an amenable number.

2243765 is a deficient number, since it is larger than the sum of its proper divisors (607435).

2243765 is a wasteful number, since it uses less digits than its factorization.

2243765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316.

The product of its digits is 10080, while the sum is 29.

The square root of 2243765 is about 1497.9202248451. The cubic root of 2243765 is about 130.9159183068.

The spelling of 2243765 in words is "two million, two hundred forty-three thousand, seven hundred sixty-five".