1101328 has 20 divisors (see below), whose sum is σ = 2259900. Its totient is φ = 518144.

The previous prime is 1101323. The next prime is 1101341. The reversal of 1101328 is 8231011.

It can be written as a sum of positive squares in 2 ways, for example, as 565504 + 535824 = 752^2 + 732^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1101323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1753 + ... + 2296.

It is an arithmetic number, because the mean of its divisors is an integer number (112995).

2^1101328 is an apocalyptic number.

It is an amenable number.

1101328 is an abundant number, since it is smaller than the sum of its proper divisors (1158572).

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

1101328 is a wasteful number, since it uses less digits than its factorization.

1101328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074 (or 4068 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1101328 is about 1049.4417563638. The cubic root of 1101328 is about 103.2695362939.

Adding to 1101328 its reverse (8231011), we get a palindrome (9332339).

The spelling of 1101328 in words is "one million, one hundred one thousand, three hundred twenty-eight".