27520416 has 288 divisors, whose sum is σ = 104727168. Its totient is φ = 6635520.

The previous prime is 27520403. The next prime is 27520421. The reversal of 27520416 is 61402572.

It is a tau number, because it is divible by the number of its divisors (288).

It is a self number, because there is not a number n which added to its sum of digits gives 27520416.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 376956 + ... + 377028.

It is an arithmetic number, because the mean of its divisors is an integer number (363636).

Almost surely, 2^27520416 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 27520416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52363584).

27520416 is an abundant number, since it is smaller than the sum of its proper divisors (77206752).

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

27520416 is a wasteful number, since it uses less digits than its factorization.

27520416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 27520416 is about 5245.9904689200. The cubic root of 27520416 is about 301.9152138344.

Adding to 27520416 its reverse (61402572), we get a palindrome (88922988).

The spelling of 27520416 in words is "twenty-seven million, five hundred twenty thousand, four hundred sixteen".