12440251032 has 96 divisors (see below), whose sum is σ = 34231646400. Its totient is φ = 3764629440.

The previous prime is 12440251027. The next prime is 12440251039. The reversal of 12440251032 is 23015204421.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 12440250993 and 12440251011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440251039) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2492043 + ... + 2497029.

It is an arithmetic number, because the mean of its divisors is an integer number (356579650).

Almost surely, 2^12440251032 is an apocalyptic number.

12440251032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12440251032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17115823200).

12440251032 is an abundant number, since it is smaller than the sum of its proper divisors (21791395368).

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

12440251032 is a wasteful number, since it uses less digits than its factorization.

12440251032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877 (or 5862 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12440251032 its reverse (23015204421), we get a palindrome (35455455453).

The spelling of 12440251032 in words is "twelve billion, four hundred forty million, two hundred fifty-one thousand, thirty-two".