43340421444 has 12 divisors (see below), whose sum is σ = 101127650064. Its totient is φ = 14446807144.

The previous prime is 43340421413. The next prime is 43340421479. The reversal of 43340421444 is 44412404334.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1805850882 + ... + 1805850905.

It is an arithmetic number, because the mean of its divisors is an integer number (8427304172).

Almost surely, 2^43340421444 is an apocalyptic number.

It is an amenable number.

43340421444 is an abundant number, since it is smaller than the sum of its proper divisors (57787228620).

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

43340421444 is a wasteful number, since it uses less digits than its factorization.

43340421444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611701794 (or 3611701792 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 43340421444 its reverse (44412404334), we get a palindrome (87752825778).

The spelling of 43340421444 in words is "forty-three billion, three hundred forty million, four hundred twenty-one thousand, four hundred forty-four".