6446244024 has 144 divisors (see below), whose sum is σ = 19659144960. Its totient is φ = 1905657600.

The previous prime is 6446244023. The next prime is 6446244031. The reversal of 6446244024 is 4204426446.

6446244024 is a `hidden beast` number, since 6 + 4 + 4 + 624 + 4 + 0 + 24 = 666.

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 6446244024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446244023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 348169 + ... + 366215.

It is an arithmetic number, because the mean of its divisors is an integer number (136521840).

Almost surely, 2^6446244024 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 6446244024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9829572480).

6446244024 is an abundant number, since it is smaller than the sum of its proper divisors (13212900936).

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

6446244024 is a wasteful number, since it uses less digits than its factorization.

6446244024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18122 (or 18104 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

The square root of 6446244024 is about 80288.5049306562. The cubic root of 6446244024 is about 1861.0965923468.

The spelling of 6446244024 in words is "six billion, four hundred forty-six million, two hundred forty-four thousand, twenty-four".