43130538 has 48 divisors (see below), whose sum is σ = 103645152. Its totient is φ = 12852000.

The previous prime is 43130519. The next prime is 43130539. The reversal of 43130538 is 83503134.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (43130539) 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, 10293 + ... + 13863.

It is an arithmetic number, because the mean of its divisors is an integer number (2159274).

Almost surely, 2^43130538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43130538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51822576).

43130538 is an abundant number, since it is smaller than the sum of its proper divisors (60514614).

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

43130538 is a wasteful number, since it uses less digits than its factorization.

43130538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651 (or 3648 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 43130538 is about 6567.3844108595. The cubic root of 43130538 is about 350.6939646246.

The spelling of 43130538 in words is "forty-three million, one hundred thirty thousand, five hundred thirty-eight".