6606220 has 12 divisors (see below), whose sum is σ = 13873104. Its totient is φ = 2642480.

The previous prime is 6606209. The next prime is 6606233. The reversal of 6606220 is 226066.

It is a junction number, because it is equal to n+sod(n) for n = 6606191 and 6606200.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 165136 + ... + 165175.

It is an arithmetic number, because the mean of its divisors is an integer number (1156092).

Almost surely, 2^6606220 is an apocalyptic number.

It is an amenable number.

6606220 is an abundant number, since it is smaller than the sum of its proper divisors (7266884).

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

6606220 is a wasteful number, since it uses less digits than its factorization.

6606220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330320 (or 330318 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6606220 is about 2570.2567965089. The cubic root of 6606220 is about 187.6366529735.

The spelling of 6606220 in words is "six million, six hundred six thousand, two hundred twenty".