344432221 has 12 divisors (see below), whose sum is σ = 402356160. Its totient is φ = 293982360.

The previous prime is 344432183. The next prime is 344432237. The reversal of 344432221 is 122234443.

It is a happy number.

It is not a de Polignac number, because 344432221 - 2⁹ = 344431709 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 (344432821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2995 + ... + 26416.

It is an arithmetic number, because the mean of its divisors is an integer number (33529680).

Almost surely, 2^344432221 is an apocalyptic number.

It is an amenable number.

344432221 is a deficient number, since it is larger than the sum of its proper divisors (57923939).

344432221 is a wasteful number, since it uses less digits than its factorization.

344432221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29664 (or 29657 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 344432221 is about 18558.8852305304. The cubic root of 344432221 is about 700.9729470507.

Adding to 344432221 its reverse (122234443), we get a palindrome (466666664).

The spelling of 344432221 in words is "three hundred forty-four million, four hundred thirty-two thousand, two hundred twenty-one".