349495109 has 4 divisors (see below), whose sum is σ = 350196000. Its totient is φ = 348794220.

The previous prime is 349495103. The next prime is 349495127. The reversal of 349495109 is 901594943.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349495109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 349495109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349495103) 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, 349697 + ... + 350694.

It is an arithmetic number, because the mean of its divisors is an integer number (87549000).

Almost surely, 2^349495109 is an apocalyptic number.

It is an amenable number.

349495109 is a deficient number, since it is larger than the sum of its proper divisors (700891).

349495109 is an equidigital number, since it uses as much as digits as its factorization.

349495109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700890.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 349495109 is about 18694.7882844391. The cubic root of 349495109 is about 704.3908417786.

The spelling of 349495109 in words is "three hundred forty-nine million, four hundred ninety-five thousand, one hundred nine".