4820220 has 72 divisors (see below), whose sum is σ = 14894880. Its totient is φ = 1261440.

The previous prime is 4820219. The next prime is 4820227. The reversal of 4820220 is 220284.

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

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 4820193 and 4820202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4820227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10761 + ... + 11199.

Almost surely, 2^4820220 is an apocalyptic number.

It is a pronic number, being equal to 2195×2196.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4820220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7447440).

4820220 is an abundant number, since it is smaller than the sum of its proper divisors (10074660).

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

4820220 is a wasteful number, since it uses less digits than its factorization.

4820220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 4820220 is about 2195.4999430654. The cubic root of 4820220 is about 168.9230652468.

The spelling of 4820220 in words is "four million, eight hundred twenty thousand, two hundred twenty".