12028449024 has 144 divisors (see below), whose sum is σ = 35661259200. Its totient is φ = 3999227904.

The previous prime is 12028449007. The next prime is 12028449061. The reversal of 12028449024 is 42094482021.

12028449024 is a `hidden beast` number, since 1 + 202 + 8 + 449 + 0 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12028449024.

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, 2990887 + ... + 2994905.

Almost surely, 2^12028449024 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 12028449024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17830629600).

12028449024 is an abundant number, since it is smaller than the sum of its proper divisors (23632810176).

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

12028449024 is an equidigital number, since it uses as much as digits as its factorization.

12028449024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477 (or 4457 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 12028449024 in words is "twelve billion, twenty-eight million, four hundred forty-nine thousand, twenty-four".