404403829 has 2 divisors, whose sum is σ = 404403830. Its totient is φ = 404403828.

The previous prime is 404403823. The next prime is 404403907. The reversal of 404403829 is 928304404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308950929 + 95452900 = 17577^2 + 9770^2 .

It is a cyclic number.

It is not a de Polignac number, because 404403829 - 2²¹ = 402306677 is a prime.

It is a super-2 number, since 2×404403829² = 327084913819722482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404403794 and 404403803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404403823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202201914 + 202201915.

It is an arithmetic number, because the mean of its divisors is an integer number (202201915).

Almost surely, 2^404403829 is an apocalyptic number.

It is an amenable number.

404403829 is a deficient number, since it is larger than the sum of its proper divisors (1).

404403829 is an equidigital number, since it uses as much as digits as its factorization.

404403829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 404403829 is about 20109.7943549903. The cubic root of 404403829 is about 739.5004109061.

The spelling of 404403829 in words is "four hundred four million, four hundred three thousand, eight hundred twenty-nine".