6641028 has 60 divisors (see below), whose sum is σ = 17617600. Its totient is φ = 2181168.

The previous prime is 6641027. The next prime is 6641039. The reversal of 6641028 is 8201466.

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 = 6640992 and 6641010.

It is not an unprimeable number, because it can be changed into a prime (6641021) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33273 + ... + 33471.

Almost surely, 2^6641028 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 6641028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8808800).

6641028 is an abundant number, since it is smaller than the sum of its proper divisors (10976572).

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

6641028 is a wasteful number, since it uses less digits than its factorization.

6641028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 6641028 is about 2577.0192083103. The cubic root of 6641028 is about 187.9656267321.

The spelling of 6641028 in words is "six million, six hundred forty-one thousand, twenty-eight".