43440023214432 has 72 divisors (see below), whose sum is σ = 133035071105664. Its totient is φ = 13366160987904.

The previous prime is 43440023214389. The next prime is 43440023214437. The reversal of 43440023214432 is 23441232004434.

43440023214432 is a `hidden beast` number, since 4 + 3 + 4 + 4 + 0 + 0 + 2 + 3 + 214 + 432 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43440023214437) 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 11 ways as a sum of consecutive naturals, for example, 5801281408 + ... + 5801288895.

It is an arithmetic number, because the mean of its divisors is an integer number (1847709320912).

Almost surely, 2^{43440023214432} is an apocalyptic number.

It is an amenable number.

43440023214432 is an abundant number, since it is smaller than the sum of its proper divisors (89595047891232).

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

43440023214432 is a wasteful number, since it uses less digits than its factorization.

43440023214432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11602570332 (or 11602570321 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 43440023214432 its reverse (23441232004434), we get a palindrome (66881255218866).

The spelling of 43440023214432 in words is "forty-three trillion, four hundred forty billion, twenty-three million, two hundred fourteen thousand, four hundred thirty-two".