349838369 has 4 divisors (see below), whose sum is σ = 349969200. Its totient is φ = 349707540.

The previous prime is 349838341. The next prime is 349838381. The reversal of 349838369 is 963838943.

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 not a de Polignac number, because 349838369 - 2¹² = 349834273 is a prime.

It is a super-2 number, since 2×349838369² = 244773768849160322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 349838369.

It is not an unprimeable number, because it can be changed into a prime (349838309) 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, 61319 + ... + 66780.

It is an arithmetic number, because the mean of its divisors is an integer number (87492300).

Almost surely, 2^349838369 is an apocalyptic number.

It is an amenable number.

349838369 is a deficient number, since it is larger than the sum of its proper divisors (130831).

349838369 is a wasteful number, since it uses less digits than its factorization.

349838369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130830.

The product of its digits is 3359232, while the sum is 53.

The square root of 349838369 is about 18703.9666648548. The cubic root of 349838369 is about 704.6213744134.

The spelling of 349838369 in words is "three hundred forty-nine million, eight hundred thirty-eight thousand, three hundred sixty-nine".