6398028 has 180 divisors, whose sum is σ = 21628992. Its totient is φ = 1632960.

The previous prime is 6398017. The next prime is 6398057. The reversal of 6398028 is 8208936.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6397983 and 6398001.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 206373 + ... + 206403.

Almost surely, 2^6398028 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 6398028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10814496).

6398028 is an abundant number, since it is smaller than the sum of its proper divisors (15230964).

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

6398028 is a wasteful number, since it uses less digits than its factorization.

6398028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 6398028 is about 2529.4323473855. The cubic root of 6398028 is about 185.6444821915.

The spelling of 6398028 in words is "six million, three hundred ninety-eight thousand, twenty-eight".