6601280 has 84 divisors (see below), whose sum is σ = 18329148. Its totient is φ = 2257920.

The previous prime is 6601279. The next prime is 6601307. The reversal of 6601280 is 821066.

It can be written as a sum of positive squares in 2 ways, for example, as 802816 + 5798464 = 896^2 + 2408^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15470 + ... + 15890.

Almost surely, 2^6601280 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 6601280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9164574).

6601280 is an abundant number, since it is smaller than the sum of its proper divisors (11727868).

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

6601280 is a wasteful number, since it uses less digits than its factorization.

6601280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 6601280 is about 2569.2956233178. The cubic root of 6601280 is about 187.5898709910.

The spelling of 6601280 in words is "six million, six hundred one thousand, two hundred eighty".