20433420044 has 12 divisors (see below), whose sum is σ = 35761495224. Its totient is φ = 10215849984.

The previous prime is 20433420043. The next prime is 20433420053. The reversal of 20433420044 is 44002433402.

It is a junction number, because it is equal to n+sod(n) for n = 20433419995 and 20433420022.

It is not an unprimeable number, because it can be changed into a prime (20433420043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159989 + ... + 257804.

It is an arithmetic number, because the mean of its divisors is an integer number (2980124602).

Almost surely, 2^20433420044 is an apocalyptic number.

It is an amenable number.

20433420044 is a deficient number, since it is larger than the sum of its proper divisors (15328075180).

20433420044 is a wasteful number, since it uses less digits than its factorization.

20433420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430024 (or 430022 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 20433420044 its reverse (44002433402), we get a palindrome (64435853446).

The spelling of 20433420044 in words is "twenty billion, four hundred thirty-three million, four hundred twenty thousand, forty-four".