12405316400 has 60 divisors (see below), whose sum is σ = 30308979000. Its totient is φ = 4878013440.

The previous prime is 12405316397. The next prime is 12405316403. The reversal of 12405316400 is 461350421.

It is an interprime number because it is at equal distance from previous prime (12405316397) and next prime (12405316403).

It is a self number, because there is not a number n which added to its sum of digits gives 12405316400.

It is not an unprimeable number, because it can be changed into a prime (12405316403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239225 + ... + 286424.

It is an arithmetic number, because the mean of its divisors is an integer number (505149650).

Almost surely, 2^12405316400 is an apocalyptic number.

12405316400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12405316400 is an abundant number, since it is smaller than the sum of its proper divisors (17903662600).

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

12405316400 is a wasteful number, since it uses less digits than its factorization.

12405316400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525726 (or 525715 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12405316400 its reverse (461350421), we get a palindrome (12866666821).

The spelling of 12405316400 in words is "twelve billion, four hundred five million, three hundred sixteen thousand, four hundred".