349911189 has 24 divisors (see below), whose sum is σ = 515043672. Its totient is φ = 228856320.

The previous prime is 349911181. The next prime is 349911209. The reversal of 349911189 is 981119943.

It can be written as a sum of positive squares in 4 ways, for example, as 2387025 + 347524164 = 1545^2 + 18642^2 .

It is not a de Polignac number, because 349911189 - 2³ = 349911181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349911181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338217 + ... + 339249.

It is an arithmetic number, because the mean of its divisors is an integer number (21460153).

Almost surely, 2^349911189 is an apocalyptic number.

It is an amenable number.

349911189 is a deficient number, since it is larger than the sum of its proper divisors (165132483).

349911189 is a wasteful number, since it uses less digits than its factorization.

349911189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717 (or 1714 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 349911189 is about 18705.9132094640. The cubic root of 349911189 is about 704.6702607691.

The spelling of 349911189 in words is "three hundred forty-nine million, nine hundred eleven thousand, one hundred eighty-nine".