34405 has 8 divisors (see below), whose sum is σ = 47232. Its totient is φ = 23568.

The previous prime is 34403. The next prime is 34421. The reversal of 34405 is 50443.

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

It is a cyclic number.

It is not a de Polignac number, because 34405 - 2¹ = 34403 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457 + ... + 526.

It is an arithmetic number, because the mean of its divisors is an integer number (5904).

2³⁴⁴⁰⁵ is an apocalyptic number.

34405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34405 is a deficient number, since it is larger than the sum of its proper divisors (12827).

34405 is an equidigital number, since it uses as much as digits as its factorization.

34405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 34405 is about 185.4858485168. The cubic root of 34405 is about 32.5242422678.

Adding to 34405 its reverse (50443), we get a palindrome (84848).

The spelling of 34405 in words is "thirty-four thousand, four hundred five".