4855220 has 48 divisors (see below), whose sum is σ = 10838016. Its totient is φ = 1824000.

The previous prime is 4855219. The next prime is 4855223. The reversal of 4855220 is 225584.

It is a super-2 number, since 2×4855220² = 47146322496800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4855220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4855223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25325 + ... + 25515.

It is an arithmetic number, because the mean of its divisors is an integer number (225792).

Almost surely, 2^4855220 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 4855220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5419008).

4855220 is an abundant number, since it is smaller than the sum of its proper divisors (5982796).

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

4855220 is a wasteful number, since it uses less digits than its factorization.

4855220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 4855220 is about 2203.4563757878. The cubic root of 4855220 is about 169.3309342390.

The spelling of 4855220 in words is "four million, eight hundred fifty-five thousand, two hundred twenty".