43124043420 has 144 divisors (see below), whose sum is σ = 135567432000. Its totient is φ = 11082925056.

The previous prime is 43124043383. The next prime is 43124043421. The reversal of 43124043420 is 2434042134.

It is a happy number.

43124043420 is a `hidden beast` number, since 4 + 312 + 4 + 0 + 4 + 342 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43124043421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2962921 + ... + 2977439.

It is an arithmetic number, because the mean of its divisors is an integer number (941440500).

Almost surely, 2^43124043420 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 43124043420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67783716000).

43124043420 is an abundant number, since it is smaller than the sum of its proper divisors (92443388580).

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

43124043420 is a wasteful number, since it uses less digits than its factorization.

43124043420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15132 (or 15127 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 43124043420 its reverse (2434042134), we get a palindrome (45558085554).

The spelling of 43124043420 in words is "forty-three billion, one hundred twenty-four million, forty-three thousand, four hundred twenty".