349706718 has 24 divisors (see below), whose sum is σ = 758078256. Its totient is φ = 116510400.

The previous prime is 349706713. The next prime is 349706729. The reversal of 349706718 is 817607943.

It is a super-2 number, since 2×349706718² = 244589577228663048, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349706713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46758 + ... + 53718.

It is an arithmetic number, because the mean of its divisors is an integer number (31586594).

Almost surely, 2^349706718 is an apocalyptic number.

349706718 is an abundant number, since it is smaller than the sum of its proper divisors (408371538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349706718 is a wasteful number, since it uses less digits than its factorization.

349706718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9760 (or 9757 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 349706718 is about 18700.4470000051. The cubic root of 349706718 is about 704.5329757361.

The spelling of 349706718 in words is "three hundred forty-nine million, seven hundred six thousand, seven hundred eighteen".