1328512 has 32 divisors (see below), whose sum is σ = 2698920. Its totient is φ = 651264.

The previous prime is 1328507. The next prime is 1328521. The reversal of 1328512 is 2158231.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12363 + ... + 12469.

2^1328512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1328512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349460).

1328512 is an abundant number, since it is smaller than the sum of its proper divisors (1370408).

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

1328512 is an equidigital number, since it uses as much as digits as its factorization.

1328512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 206 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1328512 is about 1152.6109491064. The cubic root of 1328512 is about 109.9314173041.

The spelling of 1328512 in words is "one million, three hundred twenty-eight thousand, five hundred twelve".