12442513452 has 96 divisors (see below), whose sum is σ = 32275998720. Its totient is φ = 3712558080.

The previous prime is 12442513441. The next prime is 12442513453. The reversal of 12442513452 is 25431524421.

It is a super-2 number, since 2×12442513452² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12442513453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 380677 + ... + 412067.

It is an arithmetic number, because the mean of its divisors is an integer number (336208320).

Almost surely, 2^12442513452 is an apocalyptic number.

12442513452 is a gapful number since it is divisible by the number (12) 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 12442513452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16137999360).

12442513452 is an abundant number, since it is smaller than the sum of its proper divisors (19833485268).

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

12442513452 is a wasteful number, since it uses less digits than its factorization.

12442513452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31511 (or 31509 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The spelling of 12442513452 in words is "twelve billion, four hundred forty-two million, five hundred thirteen thousand, four hundred fifty-two".