343011312 has 240 divisors, whose sum is σ = 1195227072. Its totient is φ = 89579520.

The previous prime is 343011307. The next prime is 343011343. The reversal of 343011312 is 213110343.

343011312 is a `hidden beast` number, since 343 + 0 + 11 + 312 = 666.

It is a super-2 number, since 2×343011312² = 235313520319922688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 633762 + ... + 634302.

Almost surely, 2^343011312 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 343011312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597613536).

343011312 is an abundant number, since it is smaller than the sum of its proper divisors (852215760).

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

343011312 is a wasteful number, since it uses less digits than its factorization.

343011312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 343011312 is about 18520.5645702284. The cubic root of 343011312 is about 700.0076951535.

Adding to 343011312 its reverse (213110343), we get a palindrome (556121655).

The spelling of 343011312 in words is "three hundred forty-three million, eleven thousand, three hundred twelve".