349684658 has 8 divisors (see below), whose sum is σ = 532355952. Its totient is φ = 172232676.

The previous prime is 349684651. The next prime is 349684661. The reversal of 349684658 is 856486943.

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

It is not an unprimeable number, because it can be changed into a prime (349684651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304660 + ... + 1304927.

It is an arithmetic number, because the mean of its divisors is an integer number (66544494).

Almost surely, 2^349684658 is an apocalyptic number.

349684658 is a deficient number, since it is larger than the sum of its proper divisors (182671294).

349684658 is a wasteful number, since it uses less digits than its factorization.

349684658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609656.

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

The square root of 349684658 is about 18699.8571652299. The cubic root of 349684658 is about 704.5181611086.

The spelling of 349684658 in words is "three hundred forty-nine million, six hundred eighty-four thousand, six hundred fifty-eight".