6442172 has 24 divisors (see below), whose sum is σ = 12698112. Its totient is φ = 2833200.

The previous prime is 6442169. The next prime is 6442223. The reversal of 6442172 is 2712446.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 998 + ... + 3725.

It is an arithmetic number, because the mean of its divisors is an integer number (529088).

Almost surely, 2^6442172 is an apocalyptic number.

6442172 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6442172 is a deficient number, since it is larger than the sum of its proper divisors (6255940).

6442172 is a wasteful number, since it uses less digits than its factorization.

6442172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769 (or 4767 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 6442172 is about 2538.1434159637. The cubic root of 6442172 is about 186.0704631475.

The spelling of 6442172 in words is "six million, four hundred forty-two thousand, one hundred seventy-two".