43421304144 has 40 divisors (see below), whose sum is σ = 113751594432. Its totient is φ = 14269911040.

The previous prime is 43421304127. The next prime is 43421304149. The reversal of 43421304144 is 44140312434.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43421304149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6367089 + ... + 6373904.

Almost surely, 2^43421304144 is an apocalyptic number.

It is an amenable number.

43421304144 is an abundant number, since it is smaller than the sum of its proper divisors (70330290288).

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

43421304144 is a wasteful number, since it uses less digits than its factorization.

43421304144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12741075 (or 12741069 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 43421304144 its reverse (44140312434), we get a palindrome (87561616578).

The spelling of 43421304144 in words is "forty-three billion, four hundred twenty-one million, three hundred four thousand, one hundred forty-four".