4221454144 has 56 divisors (see below), whose sum is σ = 8879189760. Its totient is φ = 1984444416.

The previous prime is 4221454121. The next prime is 4221454163. The reversal of 4221454144 is 4414541224.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1551217 + ... + 1553935.

It is an arithmetic number, because the mean of its divisors is an integer number (158556960).

Almost surely, 2^4221454144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221454144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4439594880).

4221454144 is an abundant number, since it is smaller than the sum of its proper divisors (4657735616).

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

4221454144 is a wasteful number, since it uses less digits than its factorization.

4221454144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175 (or 4165 counting only the distinct ones).

The product of its digits is 20480, while the sum is 31.

The square root of 4221454144 is about 64972.7184593657. The cubic root of 4221454144 is about 1616.1711824020.

Adding to 4221454144 its reverse (4414541224), we get a palindrome (8635995368).

The spelling of 4221454144 in words is "four billion, two hundred twenty-one million, four hundred fifty-four thousand, one hundred forty-four".