43134240 has 96 divisors (see below), whose sum is σ = 137846016. Its totient is φ = 11335680.

The previous prime is 43134233. The next prime is 43134271. The reversal of 43134240 is 4243134.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34425 + ... + 35655.

It is an arithmetic number, because the mean of its divisors is an integer number (1435896).

Almost surely, 2^43134240 is an apocalyptic number.

43134240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43134240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68923008).

43134240 is an abundant number, since it is smaller than the sum of its proper divisors (94711776).

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

43134240 is a wasteful number, since it uses less digits than its factorization.

43134240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 43134240 is about 6567.6662521782. Note that the first 3 decimals coincide. The cubic root of 43134240 is about 350.7039979790.

Adding to 43134240 its reverse (4243134), we get a palindrome (47377374).

The spelling of 43134240 in words is "forty-three million, one hundred thirty-four thousand, two hundred forty".