24221144 has 8 divisors (see below), whose sum is σ = 45414660. Its totient is φ = 12110568.

The previous prime is 24221123. The next prime is 24221147. The reversal of 24221144 is 44112242.

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24221147) by changing a digit.

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 as a sum of consecutive naturals, namely, 1513814 + ... + 1513829.

Almost surely, 2^24221144 is an apocalyptic number.

It is an amenable number.

24221144 is a deficient number, since it is larger than the sum of its proper divisors (21193516).

24221144 is a wasteful number, since it uses less digits than its factorization.

24221144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027649 (or 3027645 counting only the distinct ones).

The product of its digits is 512, while the sum is 20.

The square root of 24221144 is about 4921.4981458901. The cubic root of 24221144 is about 289.3331646220. Note that the first 3 decimals are identical.

Adding to 24221144 its reverse (44112242), we get a palindrome (68333386).

The spelling of 24221144 in words is "twenty-four million, two hundred twenty-one thousand, one hundred forty-four".