5642208 has 144 divisors (see below), whose sum is σ = 18987696. Its totient is φ = 1566720.

The previous prime is 5642191. The next prime is 5642227. The reversal of 5642208 is 8022465.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×5642208² = 63669022230528, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 41116 + ... + 41252.

It is an arithmetic number, because the mean of its divisors is an integer number (131859).

Almost surely, 2^5642208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5642208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9493848).

5642208 is an abundant number, since it is smaller than the sum of its proper divisors (13345488).

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

5642208 is a wasteful number, since it uses less digits than its factorization.

5642208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 5642208 is about 2375.3332397792. Note that the first 3 decimals coincide. The cubic root of 5642208 is about 178.0258347386.

It can be divided in two parts, 564 and 2208, that added together give a palindrome (2772).

The spelling of 5642208 in words is "five million, six hundred forty-two thousand, two hundred eight".