349308259 has 2 divisors, whose sum is σ = 349308260. Its totient is φ = 349308258.

The previous prime is 349308257. The next prime is 349308263. The reversal of 349308259 is 952803943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349308259 - 2¹ = 349308257 is a prime.

It is a super-2 number, since 2×349308259² = 244032519611222162, which contains 22 as substring.

Together with 349308257, it forms a pair of twin primes.

It is equal to p_18768193 and since 349308259 and 18768193 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (349308257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174654129 + 174654130.

It is an arithmetic number, because the mean of its divisors is an integer number (174654130).

Almost surely, 2^349308259 is an apocalyptic number.

349308259 is a deficient number, since it is larger than the sum of its proper divisors (1).

349308259 is an equidigital number, since it uses as much as digits as its factorization.

349308259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 349308259 is about 18689.7902342429. The cubic root of 349308259 is about 704.2652902926.

The spelling of 349308259 in words is "three hundred forty-nine million, three hundred eight thousand, two hundred fifty-nine".