1322560 has 28 divisors (see below), whose sum is σ = 3150108. Its totient is φ = 528896.

The previous prime is 1322557. The next prime is 1322579. The reversal of 1322560 is 652231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 732736 + 589824 = 856^2 + 768^2 .

It is an unprimeable number.

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, 1747 + ... + 2386.

2^1322560 is an apocalyptic number.

1322560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322560 is an abundant number, since it is smaller than the sum of its proper divisors (1827548).

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

1322560 is an equidigital number, since it uses as much as digits as its factorization.

1322560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 4140 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1322560 is about 1150.0260866606. The cubic root of 1322560 is about 109.7669999247.

Adding to 1322560 its reverse (652231), we get a palindrome (1974791).

The spelling of 1322560 in words is "one million, three hundred twenty-two thousand, five hundred sixty".