43021530432 has 112 divisors (see below), whose sum is σ = 126618796800. Its totient is φ = 14324244480.

The previous prime is 43021530397. The next prime is 43021530443. The reversal of 43021530432 is 23403512034.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 43021530396 and 43021530405.

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, 1560544 + ... + 1587872.

Almost surely, 2^43021530432 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 43021530432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63309398400).

43021530432 is an abundant number, since it is smaller than the sum of its proper divisors (83597266368).

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

43021530432 is a wasteful number, since it uses less digits than its factorization.

43021530432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28261 (or 28245 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The spelling of 43021530432 in words is "forty-three billion, twenty-one million, five hundred thirty thousand, four hundred thirty-two".