343304220 has 96 divisors (see below), whose sum is σ = 1108800000. Its totient is φ = 77739264.

The previous prime is 343304201. The next prime is 343304251. The reversal of 343304220 is 22403343.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 31 ways as a sum of consecutive naturals, for example, 42031 + ... + 49529.

It is an arithmetic number, because the mean of its divisors is an integer number (11550000).

Almost surely, 2^343304220 is an apocalyptic number.

343304220 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 343304220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554400000).

343304220 is an abundant number, since it is smaller than the sum of its proper divisors (765495780).

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

343304220 is a wasteful number, since it uses less digits than its factorization.

343304220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627 (or 7625 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 343304220 is about 18528.4705251135. The cubic root of 343304220 is about 700.2068912264.

Adding to 343304220 its reverse (22403343), we get a palindrome (365707563).

The spelling of 343304220 in words is "three hundred forty-three million, three hundred four thousand, two hundred twenty".