343251220 has 96 divisors (see below), whose sum is σ = 823689216. Its totient is φ = 119232000.

The previous prime is 343251217. The next prime is 343251229. The reversal of 343251220 is 22152343.

It is a junction number, because it is equal to n+sod(n) for n = 343251191 and 343251200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343251229) by changing a digit.

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, 297645 + ... + 298795.

It is an arithmetic number, because the mean of its divisors is an integer number (8580096).

Almost surely, 2^343251220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343251220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411844608).

343251220 is an abundant number, since it is smaller than the sum of its proper divisors (480437996).

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

343251220 is a wasteful number, since it uses less digits than its factorization.

343251220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 343251220 is about 18527.0402385270. The cubic root of 343251220 is about 700.1708562531.

The spelling of 343251220 in words is "three hundred forty-three million, two hundred fifty-one thousand, two hundred twenty".