2243489 has 6 divisors (see below), whose sum is σ = 2345826. Its totient is φ = 2145440.

The previous prime is 2243477. The next prime is 2243491. The reversal of 2243489 is 9843422.

It can be written as a sum of positive squares in only one way, i.e., 2235025 + 8464 = 1495^2 + 92^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2243489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1592 + ... + 2649.

It is an arithmetic number, because the mean of its divisors is an integer number (390971).

2^2243489 is an apocalyptic number.

It is an amenable number.

2243489 is a deficient number, since it is larger than the sum of its proper divisors (102337).

2243489 is an equidigital number, since it uses as much as digits as its factorization.

2243489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287 (or 4264 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 2243489 is about 1497.8280942752. The cubic root of 2243489 is about 130.9105502053.

The spelling of 2243489 in words is "two million, two hundred forty-three thousand, four hundred eighty-nine".