104404421 has 8 divisors (see below), whose sum is σ = 114087744. Its totient is φ = 94753120.

The previous prime is 104404403. The next prime is 104404423. The reversal of 104404421 is 124404401.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-104404421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104404393 and 104404402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104404423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905 + ... + 14478.

It is an arithmetic number, because the mean of its divisors is an integer number (14260968).

Almost surely, 2^104404421 is an apocalyptic number.

104404421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104404421 is a deficient number, since it is larger than the sum of its proper divisors (9683323).

104404421 is a wasteful number, since it uses less digits than its factorization.

104404421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16011.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 104404421 is about 10217.8481589814. The cubic root of 104404421 is about 470.8757190617.

Subtracting from 104404421 its sum of digits (20), we obtain a palindrome (104404401).

Adding to 104404421 its reverse (124404401), we get a palindrome (228808822).

The spelling of 104404421 in words is "one hundred four million, four hundred four thousand, four hundred twenty-one".