43134520 has 64 divisors (see below), whose sum is σ = 114035040. Its totient is φ = 14476800.

The previous prime is 43134493. The next prime is 43134551. The reversal of 43134520 is 2543134.

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 = 43134491 and 43134500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950 + ... + 9490.

Almost surely, 2^43134520 is an apocalyptic number.

43134520 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 43134520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57017520).

43134520 is an abundant number, since it is smaller than the sum of its proper divisors (70900520).

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

43134520 is a wasteful number, since it uses less digits than its factorization.

43134520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7576 (or 7572 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 43134520 is about 6567.6875686957. The cubic root of 43134520 is about 350.7047568263.

Adding to 43134520 its reverse (2543134), we get a palindrome (45677654).

The spelling of 43134520 in words is "forty-three million, one hundred thirty-four thousand, five hundred twenty".