4505220 has 96 divisors (see below), whose sum is σ = 14327040. Its totient is φ = 1189728.

The previous prime is 4505213. The next prime is 4505227. The reversal of 4505220 is 225054.

It is an interprime number because it is at equal distance from previous prime (4505213) and next prime (4505227).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4505193 and 4505202.

It is not an unprimeable number, because it can be changed into a prime (4505227) 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, 43689 + ... + 43791.

It is an arithmetic number, because the mean of its divisors is an integer number (149240).

Almost surely, 2^4505220 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 4505220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7163520).

4505220 is an abundant number, since it is smaller than the sum of its proper divisors (9821820).

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

4505220 is a wasteful number, since it uses less digits than its factorization.

4505220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 4505220 is about 2122.5503527596. The cubic root of 4505220 is about 165.1601750370.

The spelling of 4505220 in words is "four million, five hundred five thousand, two hundred twenty".