349558 has 8 divisors (see below), whose sum is σ = 572040. Its totient is φ = 158880.

The previous prime is 349553. The next prime is 349567. The reversal of 349558 is 855943.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349553) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7923 + ... + 7966.

It is an arithmetic number, because the mean of its divisors is an integer number (71505).

349558 is a Friedman number, since it can be written as (98+4^(5+5))/3, using all its digits and the basic arithmetic operations.

2³⁴⁹⁵⁵⁸ is an apocalyptic number.

349558 is a deficient number, since it is larger than the sum of its proper divisors (222482).

349558 is a wasteful number, since it uses less digits than its factorization.

349558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15902.

The product of its digits is 21600, while the sum is 34.

The square root of 349558 is about 591.2343021172. The cubic root of 349558 is about 70.4433090522.

It can be divided in two parts, 3495 and 58, that added together give a palindrome (3553).

The spelling of 349558 in words is "three hundred forty-nine thousand, five hundred fifty-eight".