6642212 has 6 divisors (see below), whose sum is σ = 11623878. Its totient is φ = 3321104.

The previous prime is 6642211. The next prime is 6642281. The reversal of 6642212 is 2122466.

It can be written as a sum of positive squares in only one way, i.e., 5044516 + 1597696 = 2246^2 + 1264^2 .

It is not an unprimeable number, because it can be changed into a prime (6642211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830273 + ... + 830280.

It is an arithmetic number, because the mean of its divisors is an integer number (1937313).

Almost surely, 2^6642212 is an apocalyptic number.

It is an amenable number.

6642212 is a deficient number, since it is larger than the sum of its proper divisors (4981666).

6642212 is a wasteful number, since it uses less digits than its factorization.

6642212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660557 (or 1660555 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 6642212 is about 2577.2489208456. The cubic root of 6642212 is about 187.9767965931.

Adding to 6642212 its reverse (2122466), we get a palindrome (8764678).

The spelling of 6642212 in words is "six million, six hundred forty-two thousand, two hundred twelve".