344220112 has 40 divisors (see below), whose sum is σ = 711690560. Its totient is φ = 160807680.

The previous prime is 344220103. The next prime is 344220113. The reversal of 344220112 is 211022443.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 344220112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344220113) 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, 14437 + ... + 29947.

It is an arithmetic number, because the mean of its divisors is an integer number (17792264).

Almost surely, 2^344220112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344220112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355845280).

344220112 is an abundant number, since it is smaller than the sum of its proper divisors (367470448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344220112 is a wasteful number, since it uses less digits than its factorization.

344220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15611 (or 15605 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 344220112 is about 18553.1698639343. The cubic root of 344220112 is about 700.8290259414.

Adding to 344220112 its reverse (211022443), we get a palindrome (555242555).

The spelling of 344220112 in words is "three hundred forty-four million, two hundred twenty thousand, one hundred twelve".