343004220 has 288 divisors, whose sum is σ = 1194298560. Its totient is φ = 82114560.

The previous prime is 343004219. The next prime is 343004227. The reversal of 343004220 is 22400343.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 343004193 and 343004202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343004227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3853936 + ... + 3854024.

It is an arithmetic number, because the mean of its divisors is an integer number (4146870).

Almost surely, 2^343004220 is an apocalyptic number.

343004220 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 343004220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597149280).

343004220 is an abundant number, since it is smaller than the sum of its proper divisors (851294340).

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

343004220 is a wasteful number, since it uses less digits than its factorization.

343004220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 343004220 is about 18520.3731063929. The cubic root of 343004220 is about 700.0028707365.

Adding to 343004220 its reverse (22400343), we get a palindrome (365404563).

The spelling of 343004220 in words is "three hundred forty-three million, four thousand, two hundred twenty".