12444452420 has 48 divisors (see below), whose sum is σ = 27718891200. Its totient is φ = 4679775360.

The previous prime is 12444452413. The next prime is 12444452441. The reversal of 12444452420 is 2425444421.

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, 75215 + ... + 174774.

It is an arithmetic number, because the mean of its divisors is an integer number (577476900).

Almost surely, 2^12444452420 is an apocalyptic number.

12444452420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12444452420 is an abundant number, since it is smaller than the sum of its proper divisors (15274438780).

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

12444452420 is a wasteful number, since it uses less digits than its factorization.

12444452420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250148 (or 250146 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 32.

Adding to 12444452420 its reverse (2425444421), we get a palindrome (14869896841).

The spelling of 12444452420 in words is "twelve billion, four hundred forty-four million, four hundred fifty-two thousand, four hundred twenty".