349405 has 16 divisors (see below), whose sum is σ = 489600. Its totient is φ = 234432.

The previous prime is 349403. The next prime is 349409. The reversal of 349405 is 504943.

It is a cyclic number.

It is not a de Polignac number, because 349405 - 2¹ = 349403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349403) 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 15 ways as a sum of consecutive naturals, for example, 2271 + ... + 2419.

It is an arithmetic number, because the mean of its divisors is an integer number (30600).

2³⁴⁹⁴⁰⁵ is an apocalyptic number.

349405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

349405 is a deficient number, since it is larger than the sum of its proper divisors (140195).

349405 is a wasteful number, since it uses less digits than its factorization.

349405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 349405 is about 591.1048976282. The cubic root of 349405 is about 70.4330299768.

The spelling of 349405 in words is "three hundred forty-nine thousand, four hundred five".