21441040024 has 16 divisors (see below), whose sum is σ = 40204684800. Its totient is φ = 10719790752.

The previous prime is 21441040007. The next prime is 21441040039. The reversal of 21441040024 is 42004014412.

It is a junction number, because it is equal to n+sod(n) for n = 21441039977 and 21441040004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45922 + ... + 212110.

It is an arithmetic number, because the mean of its divisors is an integer number (2512792800).

Almost surely, 2^21441040024 is an apocalyptic number.

It is an amenable number.

21441040024 is a deficient number, since it is larger than the sum of its proper divisors (18763644776).

21441040024 is a wasteful number, since it uses less digits than its factorization.

21441040024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182322 (or 182318 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 21441040024 its reverse (42004014412), we get a palindrome (63445054436).

The spelling of 21441040024 in words is "twenty-one billion, four hundred forty-one million, forty thousand, twenty-four".