21104482 has 16 divisors (see below), whose sum is σ = 36241920. Its totient is φ = 9029088.

The previous prime is 21104453. The next prime is 21104491. The reversal of 21104482 is 28440112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11119 + ... + 12877.

It is an arithmetic number, because the mean of its divisors is an integer number (2265120).

Almost surely, 2^21104482 is an apocalyptic number.

21104482 is a deficient number, since it is larger than the sum of its proper divisors (15137438).

21104482 is a wasteful number, since it uses less digits than its factorization.

21104482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 21104482 is about 4593.9614713230. The cubic root of 21104482 is about 276.3492131509.

Adding to 21104482 its reverse (28440112), we get a palindrome (49544594).

The spelling of 21104482 in words is "twenty-one million, one hundred four thousand, four hundred eighty-two".