43420575528 has 128 divisors (see below), whose sum is σ = 133202505600. Its totient is φ = 13157691840.

The previous prime is 43420575521. The next prime is 43420575529. The reversal of 43420575528 is 82557502434.

43420575528 is a `hidden beast` number, since 4 + 3 + 4 + 20 + 575 + 52 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (43420575521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79650 + ... + 305262.

It is an arithmetic number, because the mean of its divisors is an integer number (1040644575).

Almost surely, 2^43420575528 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 43420575528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66601252800).

43420575528 is an abundant number, since it is smaller than the sum of its proper divisors (89781930072).

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

43420575528 is a wasteful number, since it uses less digits than its factorization.

43420575528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225651 (or 225629 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 45.

The spelling of 43420575528 in words is "forty-three billion, four hundred twenty million, five hundred seventy-five thousand, five hundred twenty-eight".