343378280 has 96 divisors (see below), whose sum is σ = 920876040. Its totient is φ = 114831360.

The previous prime is 343378261. The next prime is 343378297. The reversal of 343378280 is 82873343.

343378280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 144624676 + 198753604 = 12026^2 + 14098^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78224 + ... + 82496.

Almost surely, 2^343378280 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 343378280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460438020).

343378280 is an abundant number, since it is smaller than the sum of its proper divisors (577497760).

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

343378280 is a wasteful number, since it uses less digits than its factorization.

343378280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339 (or 4328 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 343378280 is about 18530.4689633047. The cubic root of 343378280 is about 700.2572387906.

The spelling of 343378280 in words is "three hundred forty-three million, three hundred seventy-eight thousand, two hundred eighty".