349859239 has 4 divisors (see below), whose sum is σ = 349947520. Its totient is φ = 349770960.

The previous prime is 349859227. The next prime is 349859243. The reversal of 349859239 is 932958943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 932958943 = 7 ⋅133279849.

It is a cyclic number.

It is not a de Polignac number, because 349859239 - 2⁵ = 349859207 is a prime.

It is a super-2 number, since 2×349859239² = 244802974227318242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349859249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37902 + ... + 46219.

It is an arithmetic number, because the mean of its divisors is an integer number (87486880).

Almost surely, 2^349859239 is an apocalyptic number.

349859239 is a deficient number, since it is larger than the sum of its proper divisors (88281).

349859239 is an equidigital number, since it uses as much as digits as its factorization.

349859239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88280.

The product of its digits is 2099520, while the sum is 52.

The square root of 349859239 is about 18704.5245595818. The cubic root of 349859239 is about 704.6353857941.

The spelling of 349859239 in words is "three hundred forty-nine million, eight hundred fifty-nine thousand, two hundred thirty-nine".