349439 has 4 divisors (see below), whose sum is σ = 364656. Its totient is φ = 334224.

The previous prime is 349423. The next prime is 349471. The reversal of 349439 is 934943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 349439 - 2⁴ = 349423 is a prime.

It is a super-2 number, since 2×349439² = 244215229442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7574 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (91164).

2³⁴⁹⁴³⁹ is an apocalyptic number.

349439 is a deficient number, since it is larger than the sum of its proper divisors (15217).

349439 is a wasteful number, since it uses less digits than its factorization.

349439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15216.

The product of its digits is 11664, while the sum is 32.

The square root of 349439 is about 591.1336566294. The cubic root of 349439 is about 70.4353144750.

The spelling of 349439 in words is "three hundred forty-nine thousand, four hundred thirty-nine".