223744 has 40 divisors (see below), whose sum is σ = 491040. Its totient is φ = 101376.

The previous prime is 223711. The next prime is 223747. The reversal of 223744 is 447322.

223744 is nontrivially palindromic in base 15.

223744 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×223744² = 100122755072, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁵ + 2¹⁷ + 7³ + 3¹⁰ + 4⁴ + 4⁴ .

223744 is an undulating number in base 15.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (223747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9717 + ... + 9739.

It is an arithmetic number, because the mean of its divisors is an integer number (12276).

2²²³⁷⁴⁴ 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 223744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245520).

223744 is an abundant number, since it is smaller than the sum of its proper divisors (267296).

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

223744 is an equidigital number, since it uses as much as digits as its factorization.

223744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 44 counting only the distinct ones).

The product of its digits is 1344, while the sum is 22.

The square root of 223744 is about 473.0158559710. The cubic root of 223744 is about 60.7086347023.

The spelling of 223744 in words is "two hundred twenty-three thousand, seven hundred forty-four", and thus it is an iban number.