343378540 has 24 divisors (see below), whose sum is σ = 722216880. Its totient is φ = 137137728.

The previous prime is 343378499. The next prime is 343378549. The reversal of 343378540 is 45873343.

It is a self number, because there is not a number n which added to its sum of digits gives 343378540.

It is not an unprimeable number, because it can be changed into a prime (343378549) 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, 154 + ... + 26206.

It is an arithmetic number, because the mean of its divisors is an integer number (30092370).

Almost surely, 2^343378540 is an apocalyptic number.

It is an amenable number.

343378540 is an abundant number, since it is smaller than the sum of its proper divisors (378838340).

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

343378540 is a wasteful number, since it uses less digits than its factorization.

343378540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26721 (or 26719 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 343378540 is about 18530.4759787762. The cubic root of 343378540 is about 700.2574155314.

The spelling of 343378540 in words is "three hundred forty-three million, three hundred seventy-eight thousand, five hundred forty".