43130220 has 96 divisors (see below), whose sum is σ = 139496448. Its totient is φ = 9752832.

The previous prime is 43130189. The next prime is 43130231. The reversal of 43130220 is 2203134.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 43130220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42762 + ... + 43758.

It is an arithmetic number, because the mean of its divisors is an integer number (1453088).

Almost surely, 2^43130220 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 43130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69748224).

43130220 is an abundant number, since it is smaller than the sum of its proper divisors (96366228).

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

43130220 is a wasteful number, since it uses less digits than its factorization.

43130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 43130220 is about 6567.3602002631. The cubic root of 43130220 is about 350.6931027376.

Adding to 43130220 its reverse (2203134), we get a palindrome (45333354).

The spelling of 43130220 in words is "forty-three million, one hundred thirty thousand, two hundred twenty".