4131220 has 24 divisors (see below), whose sum is σ = 8807904. Its totient is φ = 1627296.

The previous prime is 4131109. The next prime is 4131223. The reversal of 4131220 is 221314.

4131220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 4131220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202 + ... + 2881.

It is an arithmetic number, because the mean of its divisors is an integer number (366996).

Almost surely, 2^4131220 is an apocalyptic number.

It is an amenable number.

4131220 is an abundant number, since it is smaller than the sum of its proper divisors (4676684).

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

4131220 is a wasteful number, since it uses less digits than its factorization.

4131220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159 (or 3157 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4131220 is about 2032.5402825036. The cubic root of 4131220 is about 160.4572855668.

Adding to 4131220 its reverse (221314), we get a palindrome (4352534).

The spelling of 4131220 in words is "four million, one hundred thirty-one thousand, two hundred twenty".