2243073 has 12 divisors (see below), whose sum is σ = 3479280. Its totient is φ = 1281672.

The previous prime is 2243057. The next prime is 2243077. The reversal of 2243073 is 3703422.

It is a happy number.

It is not a de Polignac number, because 2243073 - 2⁴ = 2243057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2243077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7483 + ... + 7776.

It is an arithmetic number, because the mean of its divisors is an integer number (289940).

2^2243073 is an apocalyptic number.

It is an amenable number.

2243073 is a deficient number, since it is larger than the sum of its proper divisors (1236207).

2243073 is a wasteful number, since it uses less digits than its factorization.

2243073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15276 (or 15269 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 2243073 is about 1497.6892200987. The cubic root of 2243073 is about 130.9024583217.

Adding to 2243073 its reverse (3703422), we get a palindrome (5946495).

The spelling of 2243073 in words is "two million, two hundred forty-three thousand, seventy-three".