344203220 has 12 divisors (see below), whose sum is σ = 722826804. Its totient is φ = 137681280.

The previous prime is 344203219. The next prime is 344203229. The reversal of 344203220 is 22302443.

It can be written as a sum of positive squares in 2 ways, for example, as 195216784 + 148986436 = 13972^2 + 12206^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 17210161 = 344203220 / (3 + 4 + 4 + 2 + 0 + 3 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 344203192 and 344203201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344203229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8605061 + ... + 8605100.

It is an arithmetic number, because the mean of its divisors is an integer number (60235567).

Almost surely, 2^344203220 is an apocalyptic number.

It is an amenable number.

344203220 is an abundant number, since it is smaller than the sum of its proper divisors (378623584).

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

344203220 is a wasteful number, since it uses less digits than its factorization.

344203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17210170 (or 17210168 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 344203220 is about 18552.7146261672. The cubic root of 344203220 is about 700.8175617676.

Adding to 344203220 its reverse (22302443), we get a palindrome (366505663).

The spelling of 344203220 in words is "three hundred forty-four million, two hundred three thousand, two hundred twenty".