349189912 has 16 divisors (see below), whose sum is σ = 661482360. Its totient is φ = 172794624.

The previous prime is 349189903. The next prime is 349189913. The reversal of 349189912 is 219981943.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349189913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224218 + ... + 225769.

Almost surely, 2^349189912 is an apocalyptic number.

It is an amenable number.

349189912 is a deficient number, since it is larger than the sum of its proper divisors (312292448).

349189912 is a wasteful number, since it uses less digits than its factorization.

349189912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450090 (or 450086 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 349189912 is about 18686.6238791281. The cubic root of 349189912 is about 704.1857453665.

The spelling of 349189912 in words is "three hundred forty-nine million, one hundred eighty-nine thousand, nine hundred twelve".