1328 has 10 divisors (see below), whose sum is σ = 2604. Its totient is φ = 656.

The previous prime is 1327. The next prime is 1361. The reversal of 1328 is 8231.

Adding to 1328 its reverse (8231), we get a palindrome (9559).

Subtracting 1328 from its reverse (8231), we obtain a triangular number (6903 = T_{117}).

It is a plaindrome in base 14.

It is a nialpdrome in base 11 and base 16.

It is not an unprimeable number, because it can be changed into a prime (1321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26 + ... + 57.

It is an amenable number.

1328 is a deficient number, since it is larger than the sum of its proper divisors (1276).

1328 is an equidigital number, since it uses as much as digits as its factorization.

1328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 85 counting only the distinct ones).

The product of its digits is 48, while the sum is 14.

The square root of 1328 is about 36.4417343166. The cubic root of 1328 is about 10.9917293202.

The spelling of 1328 in words is "one thousand, three hundred twenty-eight".

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.057 sec. • engine limits •