1121344 has 28 divisors (see below), whose sum is σ = 2544064. Its totient is φ = 480384.

The previous prime is 1121333. The next prime is 1121347. The reversal of 1121344 is 4431211.

It is a tau number, because it is divible by the number of its divisors (28).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121347) 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, 804 + ... + 1699.

2^1121344 is an apocalyptic number.

1121344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1121344 is an abundant number, since it is smaller than the sum of its proper divisors (1422720).

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

1121344 is an equidigital number, since it uses as much as digits as its factorization.

1121344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522 (or 2512 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 1121344 is about 1058.9353143606. The cubic root of 1121344 is about 103.8914053849.

Adding to 1121344 its reverse (4431211), we get a palindrome (5552555).

The spelling of 1121344 in words is "one million, one hundred twenty-one thousand, three hundred forty-four".