343042220 has 24 divisors (see below), whose sum is σ = 721410144. Its totient is φ = 137022336.

The previous prime is 343042199. The next prime is 343042243. The reversal of 343042220 is 22240343.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 343042192 and 343042201.

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, 2744 + ... + 26336.

It is an arithmetic number, because the mean of its divisors is an integer number (30058756).

Almost surely, 2^343042220 is an apocalyptic number.

It is an amenable number.

343042220 is an abundant number, since it is smaller than the sum of its proper divisors (378367924).

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

343042220 is a wasteful number, since it uses less digits than its factorization.

343042220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24329 (or 24327 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 343042220 is about 18521.3989752394. The cubic root of 343042220 is about 700.0287199101.

Adding to 343042220 its reverse (22240343), we get a palindrome (365282563).

The spelling of 343042220 in words is "three hundred forty-three million, forty-two thousand, two hundred twenty".