1328528 has 20 divisors (see below), whose sum is σ = 2635248. Its totient is φ = 648480.

The previous prime is 1328521. The next prime is 1328531. The reversal of 1328528 is 8258231.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1328528.

It is not an unprimeable number, because it can be changed into a prime (1328521) 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, 278 + ... + 1653.

2^1328528 is an apocalyptic number.

It is an amenable number.

1328528 is a deficient number, since it is larger than the sum of its proper divisors (1306720).

1328528 is a wasteful number, since it uses less digits than its factorization.

1328528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982 (or 1976 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 1328528 is about 1152.6178898490. The cubic root of 1328528 is about 109.9318586238.

The spelling of 1328528 in words is "one million, three hundred twenty-eight thousand, five hundred twenty-eight".