43134213440 has 112 divisors (see below), whose sum is σ = 111607518720. Its totient is φ = 15818250240.

The previous prime is 43134213431. The next prime is 43134213457. The reversal of 43134213440 is 4431243134.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 74054 + ... + 302906.

Almost surely, 2^43134213440 is an apocalyptic number.

43134213440 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 43134213440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55803759360).

43134213440 is an abundant number, since it is smaller than the sum of its proper divisors (68473305280).

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

43134213440 is a wasteful number, since it uses less digits than its factorization.

43134213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228920 (or 228910 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 43134213440 its reverse (4431243134), we get a palindrome (47565456574).

The spelling of 43134213440 in words is "forty-three billion, one hundred thirty-four million, two hundred thirteen thousand, four hundred forty".