343255405312 has 72 divisors (see below), whose sum is σ = 711220853952. Its totient is φ = 165221990400.

The previous prime is 343255405303. The next prime is 343255405313. The reversal of 343255405312 is 213504552343.

It is not an unprimeable number, because it can be changed into a prime (343255405313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500112 + ... + 967792.

It is an arithmetic number, because the mean of its divisors is an integer number (9878067416).

Almost surely, 2^343255405312 is an apocalyptic number.

343255405312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343255405312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355610426976).

343255405312 is an abundant number, since it is smaller than the sum of its proper divisors (367965448640).

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

343255405312 is an equidigital number, since it uses as much as digits as its factorization.

343255405312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467805 (or 467791 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 343255405312 its reverse (213504552343), we get a palindrome (556759957655).

The spelling of 343255405312 in words is "three hundred forty-three billion, two hundred fifty-five million, four hundred five thousand, three hundred twelve".