20130224444 has 24 divisors (see below), whose sum is σ = 39367759536. Its totient is φ = 8926928000.

The previous prime is 20130224423. The next prime is 20130224447. The reversal of 20130224444 is 44442203102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130224447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5577527 + ... + 5581134.

It is an arithmetic number, because the mean of its divisors is an integer number (1640323314).

Almost surely, 2^20130224444 is an apocalyptic number.

It is an amenable number.

20130224444 is a deficient number, since it is larger than the sum of its proper divisors (19237535092).

20130224444 is a wasteful number, since it uses less digits than its factorization.

20130224444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11158717 (or 11158715 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20130224444 its reverse (44442203102), we get a palindrome (64572427546).

The spelling of 20130224444 in words is "twenty billion, one hundred thirty million, two hundred twenty-four thousand, four hundred forty-four".