4536220 has 48 divisors (see below), whose sum is σ = 10442880. Its totient is φ = 1645056.

The previous prime is 4536179. The next prime is 4536283. The reversal of 4536220 is 226354.

It is a happy number.

4536220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4536191 and 4536200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18861 + ... + 19099.

It is an arithmetic number, because the mean of its divisors is an integer number (217560).

Almost surely, 2^4536220 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 4536220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5221440).

4536220 is an abundant number, since it is smaller than the sum of its proper divisors (5906660).

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

4536220 is a wasteful number, since it uses less digits than its factorization.

4536220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 4536220 is about 2129.8403696052. The cubic root of 4536220 is about 165.5381267447.

The spelling of 4536220 in words is "four million, five hundred thirty-six thousand, two hundred twenty".