6642102 has 32 divisors (see below), whose sum is σ = 13996800. Its totient is φ = 2098208.

The previous prime is 6642089. The next prime is 6642109. The reversal of 6642102 is 2012466.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642109) 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 15 ways as a sum of consecutive naturals, for example, 9943 + ... + 10589.

It is an arithmetic number, because the mean of its divisors is an integer number (437400).

Almost surely, 2^6642102 is an apocalyptic number.

6642102 is an abundant number, since it is smaller than the sum of its proper divisors (7354698).

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

6642102 is a wasteful number, since it uses less digits than its factorization.

6642102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 6642102 is about 2577.2275801722. The cubic root of 6642102 is about 187.9757589085.

Adding to 6642102 its reverse (2012466), we get a palindrome (8654568).

The spelling of 6642102 in words is "six million, six hundred forty-two thousand, one hundred two".