349718349 has 4 divisors (see below), whose sum is σ = 466291136. Its totient is φ = 233145564.

The previous prime is 349718323. The next prime is 349718353. The reversal of 349718349 is 943817943.

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 not a de Polignac number, because 349718349 - 2²³ = 341329741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349718298 and 349718307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349718549) 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, 58286389 + ... + 58286394.

It is an arithmetic number, because the mean of its divisors is an integer number (116572784).

Almost surely, 2^349718349 is an apocalyptic number.

It is an amenable number.

349718349 is a deficient number, since it is larger than the sum of its proper divisors (116572787).

349718349 is a wasteful number, since it uses less digits than its factorization.

349718349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116572786.

The product of its digits is 653184, while the sum is 48.

The square root of 349718349 is about 18700.7579792906. The cubic root of 349718349 is about 704.5407864069.

The spelling of 349718349 in words is "three hundred forty-nine million, seven hundred eighteen thousand, three hundred forty-nine".