344442221 has 8 divisors (see below), whose sum is σ = 346127040. Its totient is φ = 342762112.

The previous prime is 344442113. The next prime is 344442239. The reversal of 344442221 is 122244443.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344442221 is a prime.

It is a super-3 number, since 3×344442221³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344442521) 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, 295586 + ... + 296748.

It is an arithmetic number, because the mean of its divisors is an integer number (43265880).

Almost surely, 2^344442221 is an apocalyptic number.

It is an amenable number.

344442221 is a deficient number, since it is larger than the sum of its proper divisors (1684819).

344442221 is a wasteful number, since it uses less digits than its factorization.

344442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355.

The product of its digits is 6144, while the sum is 26.

The square root of 344442221 is about 18559.1546413084. The cubic root of 344442221 is about 700.9797308349.

Adding to 344442221 its reverse (122244443), we get a palindrome (466686664).

It can be divided in two parts, 3444422 and 21, that added together give a palindrome (3444443).

The spelling of 344442221 in words is "three hundred forty-four million, four hundred forty-two thousand, two hundred twenty-one".