20224444 has 12 divisors (see below), whose sum is σ = 35819784. Its totient is φ = 9990224.

The previous prime is 20224423. The next prime is 20224447. The reversal of 20224444 is 44442202.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224447) 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 in 3 ways as a sum of consecutive naturals, for example, 30127 + ... + 30790.

It is an arithmetic number, because the mean of its divisors is an integer number (2984982).

Almost surely, 2^20224444 is an apocalyptic number.

It is an amenable number.

20224444 is a deficient number, since it is larger than the sum of its proper divisors (15595340).

20224444 is a wasteful number, since it uses less digits than its factorization.

20224444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61004 (or 61002 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 20224444 is about 4497.1595479814. The cubic root of 20224444 is about 272.4533781025.

Adding to 20224444 its reverse (44442202), we get a palindrome (64666646).

The spelling of 20224444 in words is "twenty million, two hundred twenty-four thousand, four hundred forty-four".