1323680 has 24 divisors (see below), whose sum is σ = 3127572. Its totient is φ = 529408.

The previous prime is 1323659. The next prime is 1323689. The reversal of 1323680 is 863231.

It can be written as a sum of positive squares in 2 ways, for example, as 1317904 + 5776 = 1148^2 + 76^2 .

It is not an unprimeable number, because it can be changed into a prime (1323689) 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, 3977 + ... + 4296.

2^1323680 is an apocalyptic number.

1323680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323680 is an abundant number, since it is smaller than the sum of its proper divisors (1803892).

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

1323680 is an equidigital number, since it uses as much as digits as its factorization.

1323680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8288 (or 8280 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1323680 is about 1150.5129290886. The cubic root of 1323680 is about 109.7979763021.

The spelling of 1323680 in words is "one million, three hundred twenty-three thousand, six hundred eighty".