6641264 has 60 divisors (see below), whose sum is σ = 15394104. Its totient is φ = 2765952.

The previous prime is 6641263. The next prime is 6641267. The reversal of 6641264 is 4621466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33614 + ... + 33810.

Almost surely, 2^6641264 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 6641264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7697052).

6641264 is an abundant number, since it is smaller than the sum of its proper divisors (8752840).

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

6641264 is a wasteful number, since it uses less digits than its factorization.

6641264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 249 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 6641264 is about 2577.0649972401. The cubic root of 6641264 is about 187.9678532631.

The spelling of 6641264 in words is "six million, six hundred forty-one thousand, two hundred sixty-four".