1632320 has 28 divisors (see below), whose sum is σ = 3887724. Its totient is φ = 652800.

The previous prime is 1632317. The next prime is 1632341. The reversal of 1632320 is 232361.

It can be written as a sum of positive squares in 2 ways, for example, as 173056 + 1459264 = 416^2 + 1208^2 .

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, 2231 + ... + 2870.

2^1632320 is an apocalyptic number.

1632320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1632320 is an abundant number, since it is smaller than the sum of its proper divisors (2255404).

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

1632320 is an equidigital number, since it uses as much as digits as its factorization.

1632320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118 (or 5108 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1632320 is about 1277.6227925331. The cubic root of 1632320 is about 117.7430009528.

Adding to 1632320 its reverse (232361), we get a palindrome (1864681).

The spelling of 1632320 in words is "one million, six hundred thirty-two thousand, three hundred twenty".