6442450944 has 64 divisors (see below), whose sum is σ = 17179869180. Its totient is φ = 2147483648.

The previous prime is 6442450939. The next prime is 6442450967. The reversal of 6442450944 is 4490542446.

It is a happy number.

It is a Jordan-Polya number, since it can be written as 4! ⋅ (2!)²⁸.

It is a tau number, because it is divible by the number of its divisors (64).

It is an ABA number since it can be written as A⋅B^A, here for A=6, B=32.

It is a super-2 number, since 2×6442450944² = 83010348331692982272, which contains 22 as substring.

It is a nialpdrome in base 2 and base 8.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 6442450896 and 6442450905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

In principle, a polygon with 6442450944 sides can be constructed with ruler and compass.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2147483647 + 2147483648 + 2147483649.

Almost surely, 2^6442450944 is an apocalyptic number.

6442450944 is a gapful number since it is divisible by the number (64) 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 6442450944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8589934590).

6442450944 is an abundant number, since it is smaller than the sum of its proper divisors (10737418236).

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

6442450944 is an frugal number, since it uses more digits than its factorization.

6442450944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 5 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The square root of 6442450944 is about 80264.8798915192. The cubic root of 6442450944 is about 1860.7314870601.

The spelling of 6442450944 in words is "six billion, four hundred forty-two million, four hundred fifty thousand, nine hundred forty-four".