343842418 has 4 divisors (see below), whose sum is σ = 515763630. Its totient is φ = 171921208.

The previous prime is 343842397. The next prime is 343842419. The reversal of 343842418 is 814248343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 814248343 = 83 ⋅9810221.

It can be written as a sum of positive squares in only one way, i.e., 341030089 + 2812329 = 18467^2 + 1677^2 .

It is not an unprimeable number, because it can be changed into a prime (343842419) 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 as a sum of consecutive naturals, namely, 85960603 + ... + 85960606.

Almost surely, 2^343842418 is an apocalyptic number.

343842418 is a deficient number, since it is larger than the sum of its proper divisors (171921212).

343842418 is a wasteful number, since it uses less digits than its factorization.

343842418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171921211.

The product of its digits is 73728, while the sum is 37.

The square root of 343842418 is about 18542.9883783602. The cubic root of 343842418 is about 700.5726049468.

The spelling of 343842418 in words is "three hundred forty-three million, eight hundred forty-two thousand, four hundred eighteen".