4505216 has 32 divisors (see below), whose sum is σ = 9138180. Its totient is φ = 2211840.

The previous prime is 4505213. The next prime is 4505227. The reversal of 4505216 is 6125054.

It can be written as a sum of positive squares in 2 ways, for example, as 4494400 + 10816 = 2120^2 + 104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4505191 and 4505200.

It is not an unprimeable number, because it can be changed into a prime (4505213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7520 + ... + 8096.

Almost surely, 2^4505216 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 4505216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4569090).

4505216 is an abundant number, since it is smaller than the sum of its proper divisors (4632964).

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

4505216 is an equidigital number, since it uses as much as digits as its factorization.

4505216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 4505216 is about 2122.5494104967. The cubic root of 4505216 is about 165.1601261574.

The spelling of 4505216 in words is "four million, five hundred five thousand, two hundred sixteen".