343120320 has 224 divisors, whose sum is σ = 1223101440. Its totient is φ = 90547200.

The previous prime is 343120291. The next prime is 343120343. The reversal of 343120320 is 23021343.

343120320 is a `hidden beast` number, since 34 + 312 + 0 + 320 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 343120293 and 343120302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1304509 + ... + 1304771.

Almost surely, 2^343120320 is an apocalyptic number.

343120320 is a gapful number since it is divisible by the number (30) 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 343120320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611550720).

343120320 is an abundant number, since it is smaller than the sum of its proper divisors (879981120).

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

343120320 is a wasteful number, since it uses less digits than its factorization.

343120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 343120320 is about 18523.5072273044. The cubic root of 343120320 is about 700.0818407713.

Adding to 343120320 its reverse (23021343), we get a palindrome (366141663).

The spelling of 343120320 in words is "three hundred forty-three million, one hundred twenty thousand, three hundred twenty".