20442144033 has 24 divisors (see below), whose sum is σ = 30820777728. Its totient is φ = 13031580672.

The previous prime is 20442144029. The next prime is 20442144049. The reversal of 20442144033 is 33044124402.

It is a happy number.

20442144033 is a `hidden beast` number, since 2 + 0 + 44 + 214 + 403 + 3 = 666.

It is not a de Polignac number, because 20442144033 - 2² = 20442144029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20442143988 and 20442144006.

It is not an unprimeable number, because it can be changed into a prime (20442144053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 758241 + ... + 784737.

It is an arithmetic number, because the mean of its divisors is an integer number (1284199072).

Almost surely, 2^20442144033 is an apocalyptic number.

20442144033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20442144033 is a deficient number, since it is larger than the sum of its proper divisors (10378633695).

20442144033 is a wasteful number, since it uses less digits than its factorization.

20442144033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30253 (or 30250 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20442144033 its reverse (33044124402), we get a palindrome (53486268435).

The spelling of 20442144033 in words is "twenty billion, four hundred forty-two million, one hundred forty-four thousand, thirty-three".