2243894 has 4 divisors (see below), whose sum is σ = 3365844. Its totient is φ = 1121946.

The previous prime is 2243893. The next prime is 2243909. The reversal of 2243894 is 4983422.

2243894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4983422 = 2 ⋅2491711.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2243894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243893) by changing a digit.

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 as a sum of consecutive naturals, namely, 560972 + ... + 560975.

It is an arithmetic number, because the mean of its divisors is an integer number (841461).

2^2243894 is an apocalyptic number.

2243894 is a deficient number, since it is larger than the sum of its proper divisors (1121950).

2243894 is a wasteful number, since it uses less digits than its factorization.

2243894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121949.

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

The square root of 2243894 is about 1497.9632839292. The cubic root of 2243894 is about 130.9184271598.

The spelling of 2243894 in words is "two million, two hundred forty-three thousand, eight hundred ninety-four".