2228040289 has 4 divisors (see below), whose sum is σ = 2235969540. Its totient is φ = 2220111040.

The previous prime is 2228040257. The next prime is 2228040319. The reversal of 2228040289 is 9820408222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1817572689 + 410467600 = 42633^2 + 20260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228040289 - 2⁵ = 2228040257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2228040229) 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 3 ways as a sum of consecutive naturals, for example, 3964204 + ... + 3964765.

It is an arithmetic number, because the mean of its divisors is an integer number (558992385).

Almost surely, 2^2228040289 is an apocalyptic number.

It is an amenable number.

2228040289 is a deficient number, since it is larger than the sum of its proper divisors (7929251).

2228040289 is an equidigital number, since it uses as much as digits as its factorization.

2228040289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929250.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 2228040289 is about 47202.1216578238. The cubic root of 2228040289 is about 1306.0937360167.

The spelling of 2228040289 in words is "two billion, two hundred twenty-eight million, forty thousand, two hundred eighty-nine".