4553220 has 96 divisors (see below), whose sum is σ = 15015168. Its totient is φ = 1009152.

The previous prime is 4553209. The next prime is 4553221. The reversal of 4553220 is 223554.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (4553221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15394 + ... + 15686.

It is an arithmetic number, because the mean of its divisors is an integer number (156408).

Almost surely, 2^4553220 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 4553220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7507584).

4553220 is an abundant number, since it is smaller than the sum of its proper divisors (10461948).

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

4553220 is a wasteful number, since it uses less digits than its factorization.

4553220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 4553220 is about 2133.8275469213. The cubic root of 4553220 is about 165.7446599382.

Adding to 4553220 its reverse (223554), we get a palindrome (4776774).

The spelling of 4553220 in words is "four million, five hundred fifty-three thousand, two hundred twenty".