20040423441 has 8 divisors (see below), whose sum is σ = 27224726400. Its totient is φ = 13108201392.

The previous prime is 20040423427. The next prime is 20040423443. The reversal of 20040423441 is 14432404002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20040423441 - 2¹⁰ = 20040422417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20040423443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63020041 + ... + 63020358.

It is an arithmetic number, because the mean of its divisors is an integer number (3403090800).

Almost surely, 2^20040423441 is an apocalyptic number.

It is an amenable number.

20040423441 is a deficient number, since it is larger than the sum of its proper divisors (7184302959).

20040423441 is a wasteful number, since it uses less digits than its factorization.

20040423441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126040455.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20040423441 its reverse (14432404002), we get a palindrome (34472827443).

The spelling of 20040423441 in words is "twenty billion, forty million, four hundred twenty-three thousand, four hundred forty-one".