4321220 has 12 divisors (see below), whose sum is σ = 9074604. Its totient is φ = 1728480.

The previous prime is 4321211. The next prime is 4321231. The reversal of 4321220 is 221234.

4321220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1444804 + 2876416 = 1202^2 + 1696^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4321195 and 4321204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108011 + ... + 108050.

It is an arithmetic number, because the mean of its divisors is an integer number (756217).

Almost surely, 2^4321220 is an apocalyptic number.

It is an amenable number.

4321220 is an abundant number, since it is smaller than the sum of its proper divisors (4753384).

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

4321220 is a wasteful number, since it uses less digits than its factorization.

4321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216070 (or 216068 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4321220 is about 2078.7544347517. The cubic root of 4321220 is about 162.8803869855.

Adding to 4321220 its sum of digits (14), we get a palindrome (4321234).

Adding to 4321220 its reverse (221234), we get a palindrome (4542454).

The spelling of 4321220 in words is "four million, three hundred twenty-one thousand, two hundred twenty".