43412026421 has 8 divisors (see below), whose sum is σ = 45972653184. Its totient is φ = 40852175040.

The previous prime is 43412026403. The next prime is 43412026447. The reversal of 43412026421 is 12462021434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-43412026421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43412026321) 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 7 ways as a sum of consecutive naturals, for example, 76535 + ... + 304436.

It is an arithmetic number, because the mean of its divisors is an integer number (5746581648).

Almost surely, 2^43412026421 is an apocalyptic number.

It is an amenable number.

43412026421 is a deficient number, since it is larger than the sum of its proper divisors (2560626763).

43412026421 is a wasteful number, since it uses less digits than its factorization.

43412026421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387691.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 43412026421 its reverse (12462021434), we get a palindrome (55874047855).

The spelling of 43412026421 in words is "forty-three billion, four hundred twelve million, twenty-six thousand, four hundred twenty-one".