24231440020 has 24 divisors (see below), whose sum is σ = 51410626344. Its totient is φ = 9592651776.

The previous prime is 24231440017. The next prime is 24231440021. The reversal of 24231440020 is 2004413242.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1984524304 + 22246915716 = 44548^2 + 149154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24231439973 and 24231440000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24231440021) by changing a digit.

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, 6243277 + ... + 6247156.

It is an arithmetic number, because the mean of its divisors is an integer number (2142109431).

Almost surely, 2^24231440020 is an apocalyptic number.

24231440020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24231440020 is an abundant number, since it is smaller than the sum of its proper divisors (27179186324).

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

24231440020 is a wasteful number, since it uses less digits than its factorization.

24231440020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12490539 (or 12490537 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 24231440020 its reverse (2004413242), we get a palindrome (26235853262).

The spelling of 24231440020 in words is "twenty-four billion, two hundred thirty-one million, four hundred forty thousand, twenty".