343444223220 has 144 divisors (see below), whose sum is σ = 1120398205248. Its totient is φ = 78378639360.

The previous prime is 343444223219. The next prime is 343444223233. The reversal of 343444223220 is 22322444343.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1793419 + ... + 1975661.

It is an arithmetic number, because the mean of its divisors is an integer number (7780543092).

Almost surely, 2^343444223220 is an apocalyptic number.

343444223220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343444223220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560199102624).

343444223220 is an abundant number, since it is smaller than the sum of its proper divisors (776953982028).

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

343444223220 is a wasteful number, since it uses less digits than its factorization.

343444223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182910 (or 182901 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 33.

Adding to 343444223220 its reverse (22322444343), we get a palindrome (365766667563).

The spelling of 343444223220 in words is "three hundred forty-three billion, four hundred forty-four million, two hundred twenty-three thousand, two hundred twenty".