2243689 has 8 divisors (see below), whose sum is σ = 2576448. Its totient is φ = 1914000.

The previous prime is 2243669. The next prime is 2243693. The reversal of 2243689 is 9863422.

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

It is a cyclic number.

It is not a de Polignac number, because 2243689 - 2⁹ = 2243177 is a prime.

2243689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2243669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119 + ... + 2395.

It is an arithmetic number, because the mean of its divisors is an integer number (322056).

2^2243689 is an apocalyptic number.

It is an amenable number.

2243689 is a deficient number, since it is larger than the sum of its proper divisors (332759).

2243689 is a wasteful number, since it uses less digits than its factorization.

2243689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535.

The product of its digits is 20736, while the sum is 34.

The square root of 2243689 is about 1497.8948561231. The cubic root of 2243689 is about 130.9144401779.

The spelling of 2243689 in words is "two million, two hundred forty-three thousand, six hundred eighty-nine".