20142444430 has 16 divisors (see below), whose sum is σ = 37236303360. Its totient is φ = 7839221472.

The previous prime is 20142444403. The next prime is 20142444431. The reversal of 20142444430 is 3444424102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20142444431) by changing a digit.

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, 27219150 + ... + 27219889.

It is an arithmetic number, because the mean of its divisors is an integer number (2327268960).

Almost surely, 2^20142444430 is an apocalyptic number.

20142444430 is a deficient number, since it is larger than the sum of its proper divisors (17093858930).

20142444430 is a wasteful number, since it uses less digits than its factorization.

20142444430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54439083.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20142444430 its reverse (3444424102), we get a palindrome (23586868532).

The spelling of 20142444430 in words is "twenty billion, one hundred forty-two million, four hundred forty-four thousand, four hundred thirty".