44340320421 has 12 divisors (see below), whose sum is σ = 64079982720. Its totient is φ = 29545050600.

The previous prime is 44340320393. The next prime is 44340320447. The reversal of 44340320421 is 12402304344.

It is a happy number.

44340320421 is a `hidden beast` number, since 4 + 434 + 0 + 3 + 204 + 21 = 666.

It is not a de Polignac number, because 44340320421 - 2⁹ = 44340319909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44340320491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1245051 + ... + 1280168.

It is an arithmetic number, because the mean of its divisors is an integer number (5339998560).

Almost surely, 2^44340320421 is an apocalyptic number.

It is an amenable number.

44340320421 is a deficient number, since it is larger than the sum of its proper divisors (19739662299).

44340320421 is a wasteful number, since it uses less digits than its factorization.

44340320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527176 (or 2527173 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 44340320421 its reverse (12402304344), we get a palindrome (56742624765).

The spelling of 44340320421 in words is "forty-four billion, three hundred forty million, three hundred twenty thousand, four hundred twenty-one".