343213212 has 24 divisors (see below), whose sum is σ = 801964800. Its totient is φ = 114242416.

The previous prime is 343213193. The next prime is 343213253. The reversal of 343213212 is 212312343.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11262 + ... + 28517.

It is an arithmetic number, because the mean of its divisors is an integer number (33415200).

Almost surely, 2^343213212 is an apocalyptic number.

It is an amenable number.

343213212 is an abundant number, since it is smaller than the sum of its proper divisors (458751588).

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

343213212 is a wasteful number, since it uses less digits than its factorization.

343213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40505 (or 40503 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 343213212 is about 18526.0144661500. The cubic root of 343213212 is about 700.1450121341.

Adding to 343213212 its reverse (212312343), we get a palindrome (555525555).

The spelling of 343213212 in words is "three hundred forty-three million, two hundred thirteen thousand, two hundred twelve".