6328530 has 80 divisors (see below), whose sum is σ = 18356184. Its totient is φ = 1555200.

The previous prime is 6328529. The next prime is 6328541. The reversal of 6328530 is 358236.

It can be written as a sum of positive squares in 4 ways, for example, as 5022081 + 1306449 = 2241^2 + 1143^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 6328494 and 6328503.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10230 + ... + 10830.

Almost surely, 2^6328530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6328530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9178092).

6328530 is an abundant number, since it is smaller than the sum of its proper divisors (12027654).

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

6328530 is a wasteful number, since it uses less digits than its factorization.

6328530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 6328530 is about 2515.6569718465. The cubic root of 6328530 is about 184.9698514299.

The spelling of 6328530 in words is "six million, three hundred twenty-eight thousand, five hundred thirty".