2243968 has 32 divisors (see below), whose sum is σ = 4577760. Its totient is φ = 1095168.

The previous prime is 2243959. The next prime is 2243987. The reversal of 2243968 is 8693422.

2243968 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (32).

It is a d-powerful number, because it can be written as 2 + 2⁷ + 4 + 3¹² + 9 + 6⁸ + 8⁵ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5830 + ... + 6202.

It is an arithmetic number, because the mean of its divisors is an integer number (143055).

2^2243968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2243968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2288880).

2243968 is an abundant number, since it is smaller than the sum of its proper divisors (2333792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2243968 is an equidigital number, since it uses as much as digits as its factorization.

2243968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 422 counting only the distinct ones).

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

The square root of 2243968 is about 1497.9879839304. The cubic root of 2243968 is about 130.9198663035.

The spelling of 2243968 in words is "two million, two hundred forty-three thousand, nine hundred sixty-eight".