1223568 has 60 divisors (see below), whose sum is σ = 3554460. Its totient is φ = 392448.

The previous prime is 1223561. The next prime is 1223569. The reversal of 1223568 is 8653221.

It can be written as a sum of positive squares in 2 ways, for example, as 944784 + 278784 = 972^2 + 528^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1223561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4030 + ... + 4322.

It is an arithmetic number, because the mean of its divisors is an integer number (59241).

2^1223568 is an apocalyptic number.

1223568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1777230).

1223568 is an abundant number, since it is smaller than the sum of its proper divisors (2330892).

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

1223568 is a wasteful number, since it uses less digits than its factorization.

1223568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 327 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1223568 is about 1106.1500802332. The cubic root of 1223568 is about 106.9570386822.

Adding to 1223568 its reverse (8653221), we get a palindrome (9876789).

The spelling of 1223568 in words is "one million, two hundred twenty-three thousand, five hundred sixty-eight".