404229 has 8 divisors (see below), whose sum is σ = 616000. Its totient is φ = 230976.

The previous prime is 404221. The next prime is 404249. The reversal of 404229 is 922404.

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

It is not a de Polignac number, because 404229 - 2³ = 404221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 19249 = 404229 / (4 + 0 + 4 + 2 + 2 + 9).

It is a Curzon number.

404229 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9604 + ... + 9645.

It is an arithmetic number, because the mean of its divisors is an integer number (77000).

2⁴⁰⁴²²⁹ is an apocalyptic number.

It is an amenable number.

404229 is a deficient number, since it is larger than the sum of its proper divisors (211771).

404229 is a wasteful number, since it uses less digits than its factorization.

404229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19259.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 404229 is about 635.7900596895. The cubic root of 404229 is about 73.9393830352.

The spelling of 404229 in words is "four hundred four thousand, two hundred twenty-nine".