404729 has 8 divisors (see below), whose sum is σ = 440832. Its totient is φ = 369360.

The previous prime is 404713. The next prime is 404773. The reversal of 404729 is 927404.

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 404729 - 2⁴ = 404713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404698 and 404707.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 404729.

It is not an unprimeable number, because it can be changed into a prime (404779) 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, 2024 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (55104).

2⁴⁰⁴⁷²⁹ is an apocalyptic number.

It is an amenable number.

404729 is a deficient number, since it is larger than the sum of its proper divisors (36103).

404729 is a wasteful number, since it uses less digits than its factorization.

404729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 404729 is about 636.1831497297. The cubic root of 404729 is about 73.9698562398.

The spelling of 404729 in words is "four hundred four thousand, seven hundred twenty-nine".