104404221 has 24 divisors (see below), whose sum is σ = 164629920. Its totient is φ = 65936592.

The previous prime is 104404177. The next prime is 104404231. The reversal of 104404221 is 122404401.

104404221 is a `hidden beast` number, since 1 + 0 + 440 + 4 + 221 = 666.

It is not a de Polignac number, because 104404221 - 2⁷ = 104404093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104404194 and 104404203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104404231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6690 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (6859580).

Almost surely, 2^104404221 is an apocalyptic number.

It is an amenable number.

104404221 is a deficient number, since it is larger than the sum of its proper divisors (60225699).

104404221 is an equidigital number, since it uses as much as digits as its factorization.

104404221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22647 (or 22635 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 104404221 is about 10217.8383721803. The cubic root of 104404221 is about 470.8754183873.

Adding to 104404221 its reverse (122404401), we get a palindrome (226808622).

The spelling of 104404221 in words is "one hundred four million, four hundred four thousand, two hundred twenty-one".