349839819 has 24 divisors (see below), whose sum is σ = 586987232. Its totient is φ = 196629120.

The previous prime is 349839779. The next prime is 349839829. The reversal of 349839819 is 918938943.

It is not a de Polignac number, because 349839819 - 2⁸ = 349839563 is a prime.

It is a super-2 number, since 2×349839819² = 244775797915905522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349839829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41674 + ... + 49359.

Almost surely, 2^349839819 is an apocalyptic number.

349839819 is a deficient number, since it is larger than the sum of its proper divisors (237147413).

349839819 is a wasteful number, since it uses less digits than its factorization.

349839819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91107 (or 91104 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 349839819 is about 18704.0054266459. The cubic root of 349839819 is about 704.6223479102.

The spelling of 349839819 in words is "three hundred forty-nine million, eight hundred thirty-nine thousand, eight hundred nineteen".