12440242020 has 48 divisors (see below), whose sum is σ = 36665979840. Its totient is φ = 3142797696.

The previous prime is 12440242019. The next prime is 12440242033. The reversal of 12440242020 is 2024204421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5455107 + ... + 5457386.

It is an arithmetic number, because the mean of its divisors is an integer number (763874580).

Almost surely, 2^12440242020 is an apocalyptic number.

12440242020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12440242020 is an abundant number, since it is smaller than the sum of its proper divisors (24225737820).

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

12440242020 is a wasteful number, since it uses less digits than its factorization.

12440242020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10912524 (or 10912522 counting only the distinct ones).

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

Adding to 12440242020 its reverse (2024204421), we get a palindrome (14464446441).

The spelling of 12440242020 in words is "twelve billion, four hundred forty million, two hundred forty-two thousand, twenty".