6642126 has 12 divisors (see below), whose sum is σ = 14391312. Its totient is φ = 2214036.

The previous prime is 6642109. The next prime is 6642127. The reversal of 6642126 is 6212466.

It is a happy number.

6642126 is a `hidden beast` number, since 6 + 642 + 12 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6642126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184486 + ... + 184521.

It is an arithmetic number, because the mean of its divisors is an integer number (1199276).

Almost surely, 2^6642126 is an apocalyptic number.

6642126 is an abundant number, since it is smaller than the sum of its proper divisors (7749186).

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

6642126 is a wasteful number, since it uses less digits than its factorization.

6642126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369015 (or 369012 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 6642126 is about 2577.2322363342. The cubic root of 6642126 is about 187.9759853134.

The spelling of 6642126 in words is "six million, six hundred forty-two thousand, one hundred twenty-six".