12325949440 has 208 divisors, whose sum is σ = 34120691712. Its totient is φ = 4186570752.

The previous prime is 12325949417. The next prime is 12325949443. The reversal of 12325949440 is 4494952321.

It is not an unprimeable number, because it can be changed into a prime (12325949443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18206382 + ... + 18207058.

Almost surely, 2^12325949440 is an apocalyptic number.

12325949440 is a gapful number since it is divisible by the number (10) 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 12325949440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17060345856).

12325949440 is an abundant number, since it is smaller than the sum of its proper divisors (21794742272).

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

12325949440 is an equidigital number, since it uses as much as digits as its factorization.

12325949440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 12325949440 in words is "twelve billion, three hundred twenty-five million, nine hundred forty-nine thousand, four hundred forty".