2243748 has 48 divisors (see below), whose sum is σ = 5942720. Its totient is φ = 653184.

The previous prime is 2243743. The next prime is 2243753. The reversal of 2243748 is 8473422.

It is an interprime number because it is at equal distance from previous prime (2243743) and next prime (2243753).

It is a d-powerful number, because it can be written as 2⁵ + 2¹³ + 4² + 3⁹ + 7⁶ + 4⁵ + 8⁷ .

It is not an unprimeable number, because it can be changed into a prime (2243741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2586 + ... + 3342.

2^2243748 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 2243748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2971360).

2243748 is an abundant number, since it is smaller than the sum of its proper divisors (3698972).

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

2243748 is a wasteful number, since it uses less digits than its factorization.

2243748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 794 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 2243748 is about 1497.9145502998. The cubic root of 2243748 is about 130.9155876756.

The spelling of 2243748 in words is "two million, two hundred forty-three thousand, seven hundred forty-eight".