6642532 has 24 divisors (see below), whose sum is σ = 12622400. Its totient is φ = 3040416.

The previous prime is 6642523. The next prime is 6642539. The reversal of 6642532 is 2352466.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6642532.

It is not an unprimeable number, because it can be changed into a prime (6642539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6769 + ... + 7687.

Almost surely, 2^6642532 is an apocalyptic number.

It is an amenable number.

6642532 is a deficient number, since it is larger than the sum of its proper divisors (5979868).

6642532 is a wasteful number, since it uses less digits than its factorization.

6642532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1073 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 6642532 is about 2577.3110018001. The cubic root of 6642532 is about 187.9798152465.

Adding to 6642532 its reverse (2352466), we get a palindrome (8994998).

The spelling of 6642532 in words is "six million, six hundred forty-two thousand, five hundred thirty-two".