343691312 has 40 divisors (see below), whose sum is σ = 708834096. Its totient is φ = 160874496.

The previous prime is 343691287. The next prime is 343691339. The reversal of 343691312 is 213196343.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49223 + ... + 55769.

Almost surely, 2^343691312 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 343691312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354417048).

343691312 is an abundant number, since it is smaller than the sum of its proper divisors (365142784).

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

343691312 is a wasteful number, since it uses less digits than its factorization.

343691312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765 (or 6759 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

The square root of 343691312 is about 18538.9134525193. The cubic root of 343691312 is about 700.4699646775.

The spelling of 343691312 in words is "three hundred forty-three million, six hundred ninety-one thousand, three hundred twelve".