12325440 has 112 divisors (see below), whose sum is σ = 40306752. Its totient is φ = 3188736.

The previous prime is 12325427. The next prime is 12325441. The reversal of 12325440 is 4452321.

It is not an unprimeable number, because it can be changed into a prime (12325441) 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, 35347 + ... + 35693.

Almost surely, 2^12325440 is an apocalyptic number.

12325440 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 12325440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20153376).

12325440 is an abundant number, since it is smaller than the sum of its proper divisors (27981312).

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

12325440 is a wasteful number, since it uses less digits than its factorization.

12325440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12325440 is about 3510.7606013512. The cubic root of 12325440 is about 230.9940591789.

Adding to 12325440 its reverse (4452321), we get a palindrome (16777761).

The spelling of 12325440 in words is "twelve million, three hundred twenty-five thousand, four hundred forty".