20244424040 has 32 divisors (see below), whose sum is σ = 46660932360. Its totient is φ = 7900262400.

The previous prime is 20244424033. The next prime is 20244424087. The reversal of 20244424040 is 4042444202.

It can be written as a sum of positive squares in 4 ways, for example, as 14675384164 + 5569039876 = 121142^2 + 74626^2 .

It is a super-2 number, since 2×20244424040² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 6170441 + ... + 6173720.

Almost surely, 2^20244424040 is an apocalyptic number.

20244424040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20244424040 is an abundant number, since it is smaller than the sum of its proper divisors (26416508320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20244424040 is a wasteful number, since it uses less digits than its factorization.

20244424040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12344213 (or 12344209 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20244424040 its reverse (4042444202), we get a palindrome (24286868242).

The spelling of 20244424040 in words is "twenty billion, two hundred forty-four million, four hundred twenty-four thousand, forty".