12453040340 has 48 divisors (see below), whose sum is σ = 28230491520. Its totient is φ = 4587031680.

The previous prime is 12453040339. The next prime is 12453040367. The reversal of 12453040340 is 4304035421.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51785 + ... + 166095.

It is an arithmetic number, because the mean of its divisors is an integer number (588135240).

Almost surely, 2^12453040340 is an apocalyptic number.

12453040340 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 12453040340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14115245760).

12453040340 is an abundant number, since it is smaller than the sum of its proper divisors (15777451180).

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

12453040340 is a wasteful number, since it uses less digits than its factorization.

12453040340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114752 (or 114750 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 12453040340 its reverse (4304035421), we get a palindrome (16757075761).

The spelling of 12453040340 in words is "twelve billion, four hundred fifty-three million, forty thousand, three hundred forty".