12440240325 has 72 divisors (see below), whose sum is σ = 23036073216. Its totient is φ = 6410880000.

The previous prime is 12440240303. The next prime is 12440240327. The reversal of 12440240325 is 52304204421.

12440240325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12440240325 - 2¹² = 12440236229 is a prime.

It is a super-2 number, since 2×12440240325² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440240327) 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 71 ways as a sum of consecutive naturals, for example, 7329877 + ... + 7331573.

Almost surely, 2^12440240325 is an apocalyptic number.

12440240325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12440240325 is a deficient number, since it is larger than the sum of its proper divisors (10595832891).

12440240325 is a wasteful number, since it uses less digits than its factorization.

12440240325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795 (or 2787 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 12440240325 its reverse (52304204421), we get a palindrome (64744444746).

The spelling of 12440240325 in words is "twelve billion, four hundred forty million, two hundred forty thousand, three hundred twenty-five".