4343031220 has 72 divisors (see below), whose sum is σ = 10054800000. Its totient is φ = 1574569920.

The previous prime is 4343031137. The next prime is 4343031223. The reversal of 4343031220 is 221303434.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 4343031191 and 4343031200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4343031223) 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, 866281 + ... + 871279.

It is an arithmetic number, because the mean of its divisors is an integer number (139650000).

Almost surely, 2^4343031220 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 4343031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5027400000).

4343031220 is an abundant number, since it is smaller than the sum of its proper divisors (5711768780).

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

4343031220 is a wasteful number, since it uses less digits than its factorization.

4343031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5389 (or 5376 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 4343031220 is about 65901.6784308260. The cubic root of 4343031220 is about 1631.5397171497.

Adding to 4343031220 its reverse (221303434), we get a palindrome (4564334654).

The spelling of 4343031220 in words is "four billion, three hundred forty-three million, thirty-one thousand, two hundred twenty".