6640170 has 32 divisors (see below), whose sum is σ = 16027200. Its totient is φ = 1760640.

The previous prime is 6640163. The next prime is 6640181. The reversal of 6640170 is 710466.

It is a self number, because there is not a number n which added to its sum of digits gives 6640170.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5806 + ... + 6854.

It is an arithmetic number, because the mean of its divisors is an integer number (500850).

Almost surely, 2^6640170 is an apocalyptic number.

6640170 is an abundant number, since it is smaller than the sum of its proper divisors (9387030).

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

6640170 is a wasteful number, since it uses less digits than its factorization.

6640170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 6640170 is about 2576.8527315312. The cubic root of 6640170 is about 187.9575315269.

The spelling of 6640170 in words is "six million, six hundred forty thousand, one hundred seventy".