1447730816 has 64 divisors (see below), whose sum is σ = 3301421760. Its totient is φ = 619468800.

The previous prime is 1447730803. The next prime is 1447730819. The reversal of 1447730816 is 6180377441.

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

It is not an unprimeable number, because it can be changed into a prime (1447730819) 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 7 ways as a sum of consecutive naturals, for example, 976796 + ... + 978276.

It is an arithmetic number, because the mean of its divisors is an integer number (51584715).

Almost surely, 2^1447730816 is an apocalyptic number.

1447730816 is a gapful number since it is divisible by the number (16) 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 1447730816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650710880).

1447730816 is an abundant number, since it is smaller than the sum of its proper divisors (1853690944).

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

1447730816 is a wasteful number, since it uses less digits than its factorization.

1447730816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593 (or 2581 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 1447730816 is about 38049.0580172493. The cubic root of 1447730816 is about 1131.2604558276.

The spelling of 1447730816 in words is "one billion, four hundred forty-seven million, seven hundred thirty thousand, eight hundred sixteen".