349348289 has 4 divisors (see below), whose sum is σ = 354133956. Its totient is φ = 344562624.

The previous prime is 349348271. The next prime is 349348291. The reversal of 349348289 is 982843943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982843943 = 227 ⋅4329709.

It can be written as a sum of positive squares in 2 ways, for example, as 167314225 + 182034064 = 12935^2 + 13492^2 .

It is a cyclic number.

It is not a de Polignac number, because 349348289 - 2²⁰ = 348299713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349345289) 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, 2392724 + ... + 2392869.

It is an arithmetic number, because the mean of its divisors is an integer number (88533489).

Almost surely, 2^349348289 is an apocalyptic number.

It is an amenable number.

349348289 is a deficient number, since it is larger than the sum of its proper divisors (4785667).

349348289 is an equidigital number, since it uses as much as digits as its factorization.

349348289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4785666.

The product of its digits is 1492992, while the sum is 50.

The square root of 349348289 is about 18690.8611091089. The cubic root of 349348289 is about 704.2921917109.

The spelling of 349348289 in words is "three hundred forty-nine million, three hundred forty-eight thousand, two hundred eighty-nine".