344434110433221 has 16 divisors (see below), whose sum is σ = 459369851164160. Its totient is φ = 229560557727600.

The previous prime is 344434110433213. The next prime is 344434110433243. The reversal of 344434110433221 is 122334011434443.

It is not a de Polignac number, because 344434110433221 - 2³ = 344434110433213 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 344434110433221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344434110433201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542715360 + ... + 543349638.

It is an arithmetic number, because the mean of its divisors is an integer number (28710615697760).

Almost surely, 2^{344434110433221} is an apocalyptic number.

It is an amenable number.

344434110433221 is a deficient number, since it is larger than the sum of its proper divisors (114935740730939).

344434110433221 is a wasteful number, since it uses less digits than its factorization.

344434110433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683016.

The product of its (nonzero) digits is 331776, while the sum is 39.

Adding to 344434110433221 its reverse (122334011434443), we get a palindrome (466768121867664).

The spelling of 344434110433221 in words is "three hundred forty-four trillion, four hundred thirty-four billion, one hundred ten million, four hundred thirty-three thousand, two hundred twenty-one".