1123328 has 22 divisors (see below), whose sum is σ = 2247606. Its totient is φ = 561152.

The previous prime is 1123327. The next prime is 1123349. The reversal of 1123328 is 8233211.

It can be written as a sum of positive squares in only one way, i.e., 861184 + 262144 = 928^2 + 512^2 .

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (1123327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 476 + ... + 1572.

2^1123328 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 1123328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1123803).

1123328 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1123328 is an equidigital number, since it uses as much as digits as its factorization.

1123328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1099 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 1123328 is about 1059.8716903475. The cubic root of 1123328 is about 103.9526411592.

Adding to 1123328 its reverse (8233211), we get a palindrome (9356539).

The spelling of 1123328 in words is "one million, one hundred twenty-three thousand, three hundred twenty-eight".