6642032 has 20 divisors (see below), whose sum is σ = 13429200. Its totient is φ = 3176448.

The previous prime is 6642007. The next prime is 6642059. The reversal of 6642032 is 2302466.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6641989 and 6642007.

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 3 ways as a sum of consecutive naturals, for example, 8657 + ... + 9392.

It is an arithmetic number, because the mean of its divisors is an integer number (671460).

Almost surely, 2^6642032 is an apocalyptic number.

It is an amenable number.

6642032 is an abundant number, since it is smaller than the sum of its proper divisors (6787168).

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

6642032 is a wasteful number, since it uses less digits than its factorization.

6642032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18080 (or 18074 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 6642032 is about 2577.2139996516. The cubic root of 6642032 is about 187.9750985579.

Adding to 6642032 its reverse (2302466), we get a palindrome (8944498).

The spelling of 6642032 in words is "six million, six hundred forty-two thousand, thirty-two".