2281790289 has 4 divisors (see below), whose sum is σ = 3042387056. Its totient is φ = 1521193524.

The previous prime is 2281790243. The next prime is 2281790293. The reversal of 2281790289 is 9820971822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2281790289 - 2²⁹ = 1744919377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2281790239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380298379 + ... + 380298384.

It is an arithmetic number, because the mean of its divisors is an integer number (760596764).

Almost surely, 2^2281790289 is an apocalyptic number.

It is an amenable number.

2281790289 is a deficient number, since it is larger than the sum of its proper divisors (760596767).

2281790289 is an equidigital number, since it uses as much as digits as its factorization.

2281790289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760596766.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 2281790289 is about 47768.0886052603. The cubic root of 2281790289 is about 1316.5132745373.

The spelling of 2281790289 in words is "two billion, two hundred eighty-one million, seven hundred ninety thousand, two hundred eighty-nine".