405794 has 8 divisors (see below), whose sum is σ = 613548. Its totient is φ = 201280.

The previous prime is 405781. The next prime is 405799. The reversal of 405794 is 497504.

It can be written as a sum of positive squares in 2 ways, for example, as 405769 + 25 = 637^2 + 5^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405799) 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 3 ways as a sum of consecutive naturals, for example, 467 + ... + 1014.

2⁴⁰⁵⁷⁹⁴ is an apocalyptic number.

405794 is a deficient number, since it is larger than the sum of its proper divisors (207754).

405794 is a wasteful number, since it uses less digits than its factorization.

405794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 405794 is about 637.0196229317. The cubic root of 405794 is about 74.0346806032.

The spelling of 405794 in words is "four hundred five thousand, seven hundred ninety-four".