104221456 has 20 divisors (see below), whose sum is σ = 204013852. Its totient is φ = 51572736.

The previous prime is 104221417. The next prime is 104221459. The reversal of 104221456 is 654122401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34999056 + 69222400 = 5916^2 + 8320^2 .

It is a super-2 number, since 2×104221456² = 21724223781519872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104221456.

It is not an unprimeable number, because it can be changed into a prime (104221459) 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, 32025 + ... + 35128.

Almost surely, 2^104221456 is an apocalyptic number.

104221456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

104221456 is a deficient number, since it is larger than the sum of its proper divisors (99792396).

104221456 is an equidigital number, since it uses as much as digits as its factorization.

104221456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67258 (or 67252 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 104221456 is about 10208.8910269431. The cubic root of 104221456 is about 470.6004939601.

Adding to 104221456 its reverse (654122401), we get a palindrome (758343857).

The spelling of 104221456 in words is "one hundred four million, two hundred twenty-one thousand, four hundred fifty-six".