43440421411 has 8 divisors (see below), whose sum is σ = 46501790400. Its totient is φ = 40456555560.

The previous prime is 43440421397. The next prime is 43440421421. The reversal of 43440421411 is 11412404434.

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

It is a cyclic number.

It is not a de Polignac number, because 43440421411 - 2³³ = 34850486819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43440421411.

It is not an unprimeable number, because it can be changed into a prime (43440421421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19374625 + ... + 19376866.

It is an arithmetic number, because the mean of its divisors is an integer number (5812723800).

Almost surely, 2^43440421411 is an apocalyptic number.

43440421411 is a deficient number, since it is larger than the sum of its proper divisors (3061368989).

43440421411 is a wasteful number, since it uses less digits than its factorization.

43440421411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38751569.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 43440421411 its reverse (11412404434), we get a palindrome (54852825845).

The spelling of 43440421411 in words is "forty-three billion, four hundred forty million, four hundred twenty-one thousand, four hundred eleven".