24441000021 has 16 divisors (see below), whose sum is σ = 36655915520. Its totient is φ = 16293998556.

The previous prime is 24440999971. The next prime is 24441000083. The reversal of 24441000021 is 12000014442.

It is not a de Polignac number, because 24441000021 - 2⁷ = 24440999893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24440999958 and 24441000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24441000121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5585605 + ... + 5589978.

It is an arithmetic number, because the mean of its divisors is an integer number (2290994720).

Almost surely, 2^24441000021 is an apocalyptic number.

It is an amenable number.

24441000021 is a deficient number, since it is larger than the sum of its proper divisors (12214915499).

24441000021 is an frugal number, since it uses more digits than its factorization.

24441000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11175604 (or 11175586 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 24441000021 its reverse (12000014442), we get a palindrome (36441014463).

The spelling of 24441000021 in words is "twenty-four billion, four hundred forty-one million, twenty-one", and thus it is an aban number.