404613229 has 4 divisors (see below), whose sum is σ = 404654140. Its totient is φ = 404572320.

The previous prime is 404613203. The next prime is 404613247. The reversal of 404613229 is 922316404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 395015625 + 9597604 = 19875^2 + 3098^2 .

It is a cyclic number.

It is not a de Polignac number, because 404613229 - 2⁹ = 404612717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404613229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404613299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4657 + ... + 28825.

It is an arithmetic number, because the mean of its divisors is an integer number (101163535).

Almost surely, 2^404613229 is an apocalyptic number.

It is an amenable number.

404613229 is a deficient number, since it is larger than the sum of its proper divisors (40911).

404613229 is a wasteful number, since it uses less digits than its factorization.

404613229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40910.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 404613229 is about 20115.0000994283. Note that the first 4 decimals coincide. The cubic root of 404613229 is about 739.6280264687.

The spelling of 404613229 in words is "four hundred four million, six hundred thirteen thousand, two hundred twenty-nine".