349130289 has 4 divisors (see below), whose sum is σ = 465507056. Its totient is φ = 232753524.

The previous prime is 349130281. The next prime is 349130321. The reversal of 349130289 is 982031943.

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 349130289 - 2³ = 349130281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349130281) 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, 58188379 + ... + 58188384.

It is an arithmetic number, because the mean of its divisors is an integer number (116376764).

Almost surely, 2^349130289 is an apocalyptic number.

It is an amenable number.

349130289 is a deficient number, since it is larger than the sum of its proper divisors (116376767).

349130289 is a wasteful number, since it uses less digits than its factorization.

349130289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116376766.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 349130289 is about 18685.0284720147. The cubic root of 349130289 is about 704.1456639714.

The spelling of 349130289 in words is "three hundred forty-nine million, one hundred thirty thousand, two hundred eighty-nine".