344331220 has 48 divisors (see below), whose sum is σ = 733814928. Its totient is φ = 135705600.

The previous prime is 344331203. The next prime is 344331241. The reversal of 344331220 is 22133443.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 64705936 + 279625284 = 8044^2 + 16722^2 .

It is a junction number, because it is equal to n+sod(n) for n = 344331191 and 344331200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 753232 + ... + 753688.

It is an arithmetic number, because the mean of its divisors is an integer number (15287811).

Almost surely, 2^344331220 is an apocalyptic number.

It is an amenable number.

344331220 is an abundant number, since it is smaller than the sum of its proper divisors (389483708).

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

344331220 is a wasteful number, since it uses less digits than its factorization.

344331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 344331220 is about 18556.1639354690. The cubic root of 344331220 is about 700.9044227898.

Adding to 344331220 its reverse (22133443), we get a palindrome (366464663).

It can be divided in two parts, 34433 and 1220, that added together give a palindrome (35653).

The spelling of 344331220 in words is "three hundred forty-four million, three hundred thirty-one thousand, two hundred twenty".