404232229 has 2 divisors, whose sum is σ = 404232230. Its totient is φ = 404232228.

The previous prime is 404232193. The next prime is 404232233. The reversal of 404232229 is 922232404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213101604 + 191130625 = 14598^2 + 13825^2 .

It is a cyclic number.

It is not a de Polignac number, because 404232229 - 2¹⁵ = 404199461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404232197 and 404232206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404232029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202116114 + 202116115.

It is an arithmetic number, because the mean of its divisors is an integer number (202116115).

Almost surely, 2^404232229 is an apocalyptic number.

It is an amenable number.

404232229 is a deficient number, since it is larger than the sum of its proper divisors (1).

404232229 is an equidigital number, since it uses as much as digits as its factorization.

404232229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 404232229 is about 20105.5273245941. The cubic root of 404232229 is about 739.3957991175.

The spelling of 404232229 in words is "four hundred four million, two hundred thirty-two thousand, two hundred twenty-nine".