349646858 has 8 divisors (see below), whose sum is σ = 572149440. Its totient is φ = 158930380.

The previous prime is 349646849. The next prime is 349646863. The reversal of 349646858 is 858646943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7946498 + ... + 7946541.

It is an arithmetic number, because the mean of its divisors is an integer number (71518680).

Almost surely, 2^349646858 is an apocalyptic number.

349646858 is a deficient number, since it is larger than the sum of its proper divisors (222502582).

349646858 is a wasteful number, since it uses less digits than its factorization.

349646858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15893052.

The product of its digits is 4976640, while the sum is 53.

The square root of 349646858 is about 18698.8464350077. The cubic root of 349646858 is about 704.4927746683.

The spelling of 349646858 in words is "three hundred forty-nine million, six hundred forty-six thousand, eight hundred fifty-eight".