349439109 has 8 divisors (see below), whose sum is σ = 466940160. Its totient is φ = 232448736.

The previous prime is 349439107. The next prime is 349439117. The reversal of 349439109 is 901934943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 349439109 - 2¹ = 349439107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349439107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126069 + ... + 128810.

It is an arithmetic number, because the mean of its divisors is an integer number (58367520).

Almost surely, 2^349439109 is an apocalyptic number.

It is an amenable number.

349439109 is a deficient number, since it is larger than the sum of its proper divisors (117501051).

349439109 is a wasteful number, since it uses less digits than its factorization.

349439109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255339.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 349439109 is about 18693.2904808116. The cubic root of 349439109 is about 704.3532179864.

The spelling of 349439109 in words is "three hundred forty-nine million, four hundred thirty-nine thousand, one hundred nine".