6636256 has 48 divisors (see below), whose sum is σ = 15104880. Its totient is φ = 2836480.

The previous prime is 6636229. The next prime is 6636269. The reversal of 6636256 is 6526366.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5430 + ... + 6538.

It is an arithmetic number, because the mean of its divisors is an integer number (314685).

Almost surely, 2^6636256 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 6636256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7552440).

6636256 is an abundant number, since it is smaller than the sum of its proper divisors (8468624).

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

6636256 is a wasteful number, since it uses less digits than its factorization.

6636256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1139 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 6636256 is about 2576.0931660171. The cubic root of 6636256 is about 187.9205942010.

The spelling of 6636256 in words is "six million, six hundred thirty-six thousand, two hundred fifty-six".