1322144 has 24 divisors (see below), whose sum is σ = 2640960. Its totient is φ = 651456.

The previous prime is 1322143. The next prime is 1322147. The reversal of 1322144 is 4412231.

It is not an unprimeable number, because it can be changed into a prime (1322143) 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, 2267 + ... + 2789.

It is an arithmetic number, because the mean of its divisors is an integer number (110040).

2^1322144 is an apocalyptic number.

It is an amenable number.

1322144 is a deficient number, since it is larger than the sum of its proper divisors (1318816).

1322144 is an equidigital number, since it uses as much as digits as its factorization.

1322144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 604 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 1322144 is about 1149.8452069735. The cubic root of 1322144 is about 109.7554899591.

Adding to 1322144 its reverse (4412231), we get a palindrome (5734375).

The spelling of 1322144 in words is "one million, three hundred twenty-two thousand, one hundred forty-four".