405349 has 8 divisors (see below), whose sum is σ = 469760. Its totient is φ = 342576.

The previous prime is 405347. The next prime is 405373. The reversal of 405349 is 943504.

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 405349 - 2¹ = 405347 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405341) 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 7 ways as a sum of consecutive naturals, for example, 187 + ... + 919.

It is an arithmetic number, because the mean of its divisors is an integer number (58720).

2⁴⁰⁵³⁴⁹ is an apocalyptic number.

It is an amenable number.

405349 is a deficient number, since it is larger than the sum of its proper divisors (64411).

405349 is an equidigital number, since it uses as much as digits as its factorization.

405349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819.

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

The square root of 405349 is about 636.6702443180. The cubic root of 405349 is about 74.0076081781.

The spelling of 405349 in words is "four hundred five thousand, three hundred forty-nine".