104221328 has 20 divisors (see below), whose sum is σ = 203288700. Its totient is φ = 51759744.

The previous prime is 104221321. The next prime is 104221343. The reversal of 104221328 is 823122401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67108864 + 37112464 = 8192^2 + 6092^2 .

It is a super-4 number, since 4×104221328⁴ (a number of 33 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (104221321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19475 + ... + 24242.

It is an arithmetic number, because the mean of its divisors is an integer number (10164435).

Almost surely, 2^104221328 is an apocalyptic number.

It is an amenable number.

104221328 is a deficient number, since it is larger than the sum of its proper divisors (99067372).

104221328 is a wasteful number, since it uses less digits than its factorization.

104221328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43874 (or 43868 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 104221328 is about 10208.8847578959. The cubic root of 104221328 is about 470.6003013034.

Adding to 104221328 its reverse (823122401), we get a palindrome (927343729).

The spelling of 104221328 in words is "one hundred four million, two hundred twenty-one thousand, three hundred twenty-eight".