6442850 has 12 divisors (see below), whose sum is σ = 11983794. Its totient is φ = 2577120.

The previous prime is 6442841. The next prime is 6442853. The reversal of 6442850 is 582446.

It can be written as a sum of positive squares in 3 ways, for example, as 5564881 + 877969 = 2359^2 + 937^2 .

It is a super-2 number, since 2×6442850² = 83020632245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6442853) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 64379 + ... + 64478.

Almost surely, 2^6442850 is an apocalyptic number.

6442850 is a deficient number, since it is larger than the sum of its proper divisors (5540944).

6442850 is a wasteful number, since it uses less digits than its factorization.

6442850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128869 (or 128864 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 6442850 is about 2538.2769746424. The cubic root of 6442850 is about 186.0769905189.

The spelling of 6442850 in words is "six million, four hundred forty-two thousand, eight hundred fifty".