4221544224 has 24 divisors (see below), whose sum is σ = 11081553840. Its totient is φ = 1407181376.

The previous prime is 4221544219. The next prime is 4221544253. The reversal of 4221544224 is 4224451224.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 4221544191 and 4221544200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21987114 + ... + 21987305.

It is an arithmetic number, because the mean of its divisors is an integer number (461731410).

Almost surely, 2^4221544224 is an apocalyptic number.

It is an amenable number.

4221544224 is an abundant number, since it is smaller than the sum of its proper divisors (6860009616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221544224 is a wasteful number, since it uses less digits than its factorization.

4221544224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43974432 (or 43974424 counting only the distinct ones).

The product of its digits is 20480, while the sum is 30.

The square root of 4221544224 is about 64973.4116696976. The cubic root of 4221544224 is about 1616.1826779403.

Adding to 4221544224 its reverse (4224451224), we get a palindrome (8445995448).

The spelling of 4221544224 in words is "four billion, two hundred twenty-one million, five hundred forty-four thousand, two hundred twenty-four".