6221680 has 40 divisors (see below), whose sum is σ = 14655312. Its totient is φ = 2456064.

The previous prime is 6221671. The next prime is 6221693. The reversal of 6221680 is 861226.

It is a tau number, because it is divible by the number of its divisors (40).

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, 6172 + ... + 7108.

Almost surely, 2^6221680 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 6221680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7327656).

6221680 is an abundant number, since it is smaller than the sum of its proper divisors (8433632).

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

6221680 is a wasteful number, since it uses less digits than its factorization.

6221680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 6221680 is about 2494.3295692430. The cubic root of 6221680 is about 183.9229355916.

The spelling of 6221680 in words is "six million, two hundred twenty-one thousand, six hundred eighty".