343540197 has 160 divisors (see below), whose sum is σ = 728555520. Its totient is φ = 155364480.

The previous prime is 343540181. The next prime is 343540217. The reversal of 343540197 is 791045343.

It is not a de Polignac number, because 343540197 - 2⁴ = 343540181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343540697) by changing a digit.

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 159 ways as a sum of consecutive naturals, for example, 1540428 + ... + 1540650.

It is an arithmetic number, because the mean of its divisors is an integer number (4553472).

Almost surely, 2^343540197 is an apocalyptic number.

It is an amenable number.

343540197 is an abundant number, since it is smaller than the sum of its proper divisors (385015323).

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

343540197 is a wasteful number, since it uses less digits than its factorization.

343540197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 343540197 is about 18534.8373880107. The cubic root of 343540197 is about 700.3672882035.

The spelling of 343540197 in words is "three hundred forty-three million, five hundred forty thousand, one hundred ninety-seven".