5645328 has 80 divisors (see below), whose sum is σ = 16040640. Its totient is φ = 1700352.

The previous prime is 5645323. The next prime is 5645329. The reversal of 5645328 is 8235465.

It is not an unprimeable number, because it can be changed into a prime (5645323) 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 15 ways as a sum of consecutive naturals, for example, 51738 + ... + 51846.

It is an arithmetic number, because the mean of its divisors is an integer number (200508).

Almost surely, 2^5645328 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 5645328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8020320).

5645328 is an abundant number, since it is smaller than the sum of its proper divisors (10395312).

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

5645328 is a wasteful number, since it uses less digits than its factorization.

5645328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 210 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 5645328 is about 2375.9898989684. The cubic root of 5645328 is about 178.0586433042.

The spelling of 5645328 in words is "five million, six hundred forty-five thousand, three hundred twenty-eight".