349670 has 16 divisors (see below), whose sum is σ = 639360. Its totient is φ = 137664.

The previous prime is 349667. The next prime is 349697. The reversal of 349670 is 76943.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491 + ... + 969.

It is an arithmetic number, because the mean of its divisors is an integer number (39960).

2³⁴⁹⁶⁷⁰ is an apocalyptic number.

349670 is a deficient number, since it is larger than the sum of its proper divisors (289690).

349670 is a wasteful number, since it uses less digits than its factorization.

349670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 349670 is about 591.3290116340. The cubic root of 349670 is about 70.4508317028.

The spelling of 349670 in words is "three hundred forty-nine thousand, six hundred seventy".