6442180 has 12 divisors (see below), whose sum is σ = 13528620. Its totient is φ = 2576864.

The previous prime is 6442169. The next prime is 6442223. The reversal of 6442180 is 812446.

It can be written as a sum of positive squares in 2 ways, for example, as 2937796 + 3504384 = 1714^2 + 1872^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161035 + ... + 161074.

It is an arithmetic number, because the mean of its divisors is an integer number (1127385).

Almost surely, 2^6442180 is an apocalyptic number.

It is an amenable number.

6442180 is an abundant number, since it is smaller than the sum of its proper divisors (7086440).

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

6442180 is a wasteful number, since it uses less digits than its factorization.

6442180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322118 (or 322116 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 6442180 is about 2538.1449919183. The cubic root of 6442180 is about 186.0705401693.

The spelling of 6442180 in words is "six million, four hundred forty-two thousand, one hundred eighty".