343653212 has 36 divisors (see below), whose sum is σ = 718519536. Its totient is φ = 140870400.

The previous prime is 343653173. The next prime is 343653223. The reversal of 343653212 is 212356343.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3212 + ... + 26412.

It is an arithmetic number, because the mean of its divisors is an integer number (19958876).

Almost surely, 2^343653212 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 343653212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359259768).

343653212 is an abundant number, since it is smaller than the sum of its proper divisors (374866324).

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

343653212 is a wasteful number, since it uses less digits than its factorization.

343653212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23258 (or 23233 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 343653212 is about 18537.8858557280. The cubic root of 343653212 is about 700.4440801207. Note that the first 3 decimals are identical.

The spelling of 343653212 in words is "three hundred forty-three million, six hundred fifty-three thousand, two hundred twelve".