43253189440 has 112 divisors (see below), whose sum is σ = 108361575504. Its totient is φ = 16422912000.

The previous prime is 43253189417. The next prime is 43253189479. The reversal of 43253189440 is 4498135234.

It can be written as a sum of positive squares in 8 ways, for example, as 8002375936 + 35250813504 = 89456^2 + 187752^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440890 + ... + 529990.

It is an arithmetic number, because the mean of its divisors is an integer number (967514067).

Almost surely, 2^43253189440 is an apocalyptic number.

43253189440 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 43253189440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54180787752).

43253189440 is an abundant number, since it is smaller than the sum of its proper divisors (65108386064).

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

43253189440 is a wasteful number, since it uses less digits than its factorization.

43253189440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89196 (or 89186 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 43253189440 in words is "forty-three billion, two hundred fifty-three million, one hundred eighty-nine thousand, four hundred forty".