1328337528 has 32 divisors (see below), whose sum is σ = 3795250560. Its totient is φ = 379524960.

The previous prime is 1328337421. The next prime is 1328337529. The reversal of 1328337528 is 8257338231.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1328337528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328337529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3953218 + ... + 3953553.

It is an arithmetic number, because the mean of its divisors is an integer number (118601580).

Almost surely, 2^1328337528 is an apocalyptic number.

It is an amenable number.

1328337528 is an abundant number, since it is smaller than the sum of its proper divisors (2466913032).

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

1328337528 is a wasteful number, since it uses less digits than its factorization.

1328337528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7906787 (or 7906783 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 1328337528 is about 36446.3650862469. The cubic root of 1328337528 is about 1099.2660470326.

The spelling of 1328337528 in words is "one billion, three hundred twenty-eight million, three hundred thirty-seven thousand, five hundred twenty-eight".