349218195 has 16 divisors (see below), whose sum is σ = 588157440. Its totient is φ = 176446944.

The previous prime is 349218161. The next prime is 349218211. The reversal of 349218195 is 591812943.

It is not a de Polignac number, because 349218195 - 2²⁵ = 315663763 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 612379 + ... + 612948.

It is an arithmetic number, because the mean of its divisors is an integer number (36759840).

Almost surely, 2^349218195 is an apocalyptic number.

349218195 is a deficient number, since it is larger than the sum of its proper divisors (238939245).

349218195 is a wasteful number, since it uses less digits than its factorization.

349218195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225354.

The product of its digits is 77760, while the sum is 42.

The square root of 349218195 is about 18687.3806350703. The cubic root of 349218195 is about 704.2047569388.

The spelling of 349218195 in words is "three hundred forty-nine million, two hundred eighteen thousand, one hundred ninety-five".