20441504 has 24 divisors (see below), whose sum is σ = 40501440. Its totient is φ = 10155456.

The previous prime is 20441471. The next prime is 20441563. The reversal of 20441504 is 40514402.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3257 + ... + 7175.

It is an arithmetic number, because the mean of its divisors is an integer number (1687560).

Almost surely, 2^20441504 is an apocalyptic number.

It is an amenable number.

20441504 is a deficient number, since it is larger than the sum of its proper divisors (20059936).

20441504 is a wasteful number, since it uses less digits than its factorization.

20441504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092 (or 4084 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20441504 is about 4521.2281517305. The cubic root of 20441504 is about 273.4246188588.

Adding to 20441504 its reverse (40514402), we get a palindrome (60955906).

The spelling of 20441504 in words is "twenty million, four hundred forty-one thousand, five hundred four".