4071220 has 24 divisors (see below), whose sum is σ = 8594208. Its totient is φ = 1620000.

The previous prime is 4071217. The next prime is 4071227. The reversal of 4071220 is 221704.

It is a junction number, because it is equal to n+sod(n) for n = 4071194 and 4071203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4071227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4615 + ... + 5425.

It is an arithmetic number, because the mean of its divisors is an integer number (358092).

Almost surely, 2^4071220 is an apocalyptic number.

It is an amenable number.

4071220 is an abundant number, since it is smaller than the sum of its proper divisors (4522988).

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

4071220 is a wasteful number, since it uses less digits than its factorization.

4071220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 4071220 is about 2017.7264433020. The cubic root of 4071220 is about 159.6766908851.

Adding to 4071220 its reverse (221704), we get a palindrome (4292924).

The spelling of 4071220 in words is "four million, seventy-one thousand, two hundred twenty".