43532644540 has 96 divisors (see below), whose sum is σ = 115022476800. Its totient is φ = 13444081920.

The previous prime is 43532644537. The next prime is 43532644541. The reversal of 43532644540 is 4544623534.

It is a super-2 number, since 2×43532644540² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43532644493 and 43532644502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43532644541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38191 + ... + 297529.

It is an arithmetic number, because the mean of its divisors is an integer number (1198150800).

Almost surely, 2^43532644540 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 43532644540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57511238400).

43532644540 is an abundant number, since it is smaller than the sum of its proper divisors (71489832260).

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

43532644540 is a wasteful number, since it uses less digits than its factorization.

43532644540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259475 (or 259473 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

The spelling of 43532644540 in words is "forty-three billion, five hundred thirty-two million, six hundred forty-four thousand, five hundred forty".