1447398816 has 96 divisors (see below), whose sum is σ = 3980793600. Its totient is φ = 459863040.

The previous prime is 1447398811. The next prime is 1447398881. The reversal of 1447398816 is 6188937441.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (1447398811) 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 15 ways as a sum of consecutive naturals, for example, 216646 + ... + 223226.

It is an arithmetic number, because the mean of its divisors is an integer number (41466600).

Almost surely, 2^1447398816 is an apocalyptic number.

1447398816 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 1447398816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1990396800).

1447398816 is an abundant number, since it is smaller than the sum of its proper divisors (2533394784).

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

1447398816 is a wasteful number, since it uses less digits than its factorization.

1447398816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702 (or 6694 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 1447398816 is about 38044.6949784066. The cubic root of 1447398816 is about 1131.1739740082.

The spelling of 1447398816 in words is "one billion, four hundred forty-seven million, three hundred ninety-eight thousand, eight hundred sixteen".