6670420 has 24 divisors (see below), whose sum is σ = 14087304. Its totient is φ = 2653056.

The previous prime is 6670403. The next prime is 6670423. The reversal of 6670420 is 240766.

6670420 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2022084 + 4648336 = 1422^2 + 2156^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670423) 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, 3094 + ... + 4786.

It is an arithmetic number, because the mean of its divisors is an integer number (586971).

Almost surely, 2^6670420 is an apocalyptic number.

It is an amenable number.

6670420 is an abundant number, since it is smaller than the sum of its proper divisors (7416884).

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

6670420 is a wasteful number, since it uses less digits than its factorization.

6670420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 6670420 is about 2582.7156250737. The cubic root of 6670420 is about 188.2425193688.

The spelling of 6670420 in words is "six million, six hundred seventy thousand, four hundred twenty".