20040424401 has 12 divisors (see below), whose sum is σ = 28200931152. Its totient is φ = 12657109464.

The previous prime is 20040424379. The next prime is 20040424403. The reversal of 20040424401 is 10442404002.

It is not a de Polignac number, because 20040424401 - 2¹⁵ = 20040391633 is a prime.

It is a super-2 number, since 2×20040424401² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20040424403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9251191 + ... + 9253356.

It is an arithmetic number, because the mean of its divisors is an integer number (2350077596).

Almost surely, 2^20040424401 is an apocalyptic number.

It is an amenable number.

20040424401 is a deficient number, since it is larger than the sum of its proper divisors (8160506751).

20040424401 is a wasteful number, since it uses less digits than its factorization.

20040424401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18504588 (or 18504569 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20040424401 its reverse (10442404002), we get a palindrome (30482828403).

The spelling of 20040424401 in words is "twenty billion, forty million, four hundred twenty-four thousand, four hundred one".