12442447524 has 96 divisors (see below), whose sum is σ = 31912456576. Its totient is φ = 3749898240.

The previous prime is 12442447487. The next prime is 12442447573. The reversal of 12442447524 is 42574424421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1888524 + ... + 1895100.

Almost surely, 2^12442447524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12442447524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15956228288).

12442447524 is an abundant number, since it is smaller than the sum of its proper divisors (19470009052).

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

12442447524 is a wasteful number, since it uses less digits than its factorization.

12442447524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6845 (or 6843 counting only the distinct ones).

The product of its digits is 286720, while the sum is 39.

The spelling of 12442447524 in words is "twelve billion, four hundred forty-two million, four hundred forty-seven thousand, five hundred twenty-four".