344427220 has 24 divisors (see below), whose sum is σ = 726189408. Its totient is φ = 137220000.

The previous prime is 344427211. The next prime is 344427263. The reversal of 344427220 is 22724443.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29286 + ... + 39325.

It is an arithmetic number, because the mean of its divisors is an integer number (30257892).

Almost surely, 2^344427220 is an apocalyptic number.

It is an amenable number.

344427220 is an abundant number, since it is smaller than the sum of its proper divisors (381762188).

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

344427220 is a wasteful number, since it uses less digits than its factorization.

344427220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68871 (or 68869 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 344427220 is about 18558.7504967333. The cubic root of 344427220 is about 700.9695544309.

The spelling of 344427220 in words is "three hundred forty-four million, four hundred twenty-seven thousand, two hundred twenty".