8202381489 has 45 divisors (see below), whose sum is σ = 12726700987. Its totient is φ = 5264478576.

The previous prime is 8202381437. The next prime is 8202381503. The reversal of 8202381489 is 9841832028.

The square root of 8202381489 is 90567.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4301129889 + 3901251600 = 65583^2 + 62460^2 .

It is not a de Polignac number, because 8202381489 - 2⁷ = 8202381361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8202381589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 23637814 + ... + 23638160.

Almost surely, 2^8202381489 is an apocalyptic number.

8202381489 is the 90567-th square number.

8202381489 is the 45284-th centered octagonal number.

It is an amenable number.

8202381489 is a deficient number, since it is larger than the sum of its proper divisors (4524319498).

8202381489 is an frugal number, since it uses more digits than its factorization.

8202381489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The cubic root of 8202381489 is about 2016.7248735273.

The spelling of 8202381489 in words is "eight billion, two hundred two million, three hundred eighty-one thousand, four hundred eighty-nine".