43130340 has 192 divisors, whose sum is σ = 150232320. Its totient is φ = 10183680.

The previous prime is 43130327. The next prime is 43130341. The reversal of 43130340 is 4303134.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43130341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 314752 + ... + 314888.

It is an arithmetic number, because the mean of its divisors is an integer number (782460).

Almost surely, 2^43130340 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 43130340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75116160).

43130340 is an abundant number, since it is smaller than the sum of its proper divisors (107101980).

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

43130340 is a wasteful number, since it uses less digits than its factorization.

43130340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 43130340 is about 6567.3693363477. The cubic root of 43130340 is about 350.6934279785.

Adding to 43130340 its reverse (4303134), we get a palindrome (47433474).

The spelling of 43130340 in words is "forty-three million, one hundred thirty thousand, three hundred forty".