4120220 has 72 divisors (see below), whose sum is σ = 9961056. Its totient is φ = 1427712.

The previous prime is 4120219. The next prime is 4120223. The reversal of 4120220 is 220214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120223) 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, 77714 + ... + 77766.

It is an arithmetic number, because the mean of its divisors is an integer number (138348).

Almost surely, 2^4120220 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 4120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4980528).

4120220 is an abundant number, since it is smaller than the sum of its proper divisors (5840836).

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

4120220 is a wasteful number, since it uses less digits than its factorization.

4120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 4120220 is about 2029.8325054053. The cubic root of 4120220 is about 160.3147450247.

Adding to 4120220 its reverse (220214), we get a palindrome (4340434).

The spelling of 4120220 in words is "four million, one hundred twenty thousand, two hundred twenty".