343394280 has 48 divisors (see below), whose sum is σ = 1116032580. Its totient is φ = 91571712.

The previous prime is 343394279. The next prime is 343394287. The reversal of 343394280 is 82493343.

It is a happy number.

343394280 is a `hidden beast` number, since 343 + 39 + 4 + 280 = 666.

343394280 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 2 ways, for example, as 311381316 + 32012964 = 17646^2 + 5658^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (343394287) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 476577 + ... + 477296.

Almost surely, 2^343394280 is an apocalyptic number.

343394280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

343394280 is an abundant number, since it is smaller than the sum of its proper divisors (772638300).

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

343394280 is a wasteful number, since it uses less digits than its factorization.

343394280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953890 (or 953883 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 343394280 is about 18530.9006796756. The cubic root of 343394280 is about 700.2681149802.

The spelling of 343394280 in words is "three hundred forty-three million, three hundred ninety-four thousand, two hundred eighty".