349724313 has 6 divisors (see below), whose sum is σ = 505157354. Its totient is φ = 233149536.

The previous prime is 349724303. The next prime is 349724327. The reversal of 349724313 is 313427943.

It can be written as a sum of positive squares in only one way, i.e., 312122889 + 37601424 = 17667^2 + 6132^2 .

It is not a de Polignac number, because 349724313 - 2⁸ = 349724057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (349724303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19429120 + ... + 19429137.

Almost surely, 2^349724313 is an apocalyptic number.

It is an amenable number.

349724313 is a deficient number, since it is larger than the sum of its proper divisors (155433041).

349724313 is a wasteful number, since it uses less digits than its factorization.

349724313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38858263 (or 38858260 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 349724313 is about 18700.9174373879. The cubic root of 349724313 is about 704.5447913987.

The spelling of 349724313 in words is "three hundred forty-nine million, seven hundred twenty-four thousand, three hundred thirteen".