6606020 has 24 divisors (see below), whose sum is σ = 13920984. Its totient is φ = 2633216.

The previous prime is 6606011. The next prime is 6606023. The reversal of 6606020 is 206066.

It can be written as a sum of positive squares in 4 ways, for example, as 123904 + 6482116 = 352^2 + 2546^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6605983 and 6606001.

It is not an unprimeable number, because it can be changed into a prime (6606023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10844 + ... + 11436.

It is an arithmetic number, because the mean of its divisors is an integer number (580041).

Almost surely, 2^6606020 is an apocalyptic number.

It is an amenable number.

6606020 is an abundant number, since it is smaller than the sum of its proper divisors (7314964).

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

6606020 is a wasteful number, since it uses less digits than its factorization.

6606020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 6606020 is about 2570.2178895961. The cubic root of 6606020 is about 187.6347594192.

The spelling of 6606020 in words is "six million, six hundred six thousand, twenty".