2289820197 has 8 divisors (see below), whose sum is σ = 3489249856. Its totient is φ = 1308468672.

The previous prime is 2289820189. The next prime is 2289820231. The reversal of 2289820197 is 7910289822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2289820197 - 2³ = 2289820189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289820157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54519508 + ... + 54519549.

It is an arithmetic number, because the mean of its divisors is an integer number (436156232).

Almost surely, 2^2289820197 is an apocalyptic number.

It is an amenable number.

2289820197 is a deficient number, since it is larger than the sum of its proper divisors (1199429659).

2289820197 is a wasteful number, since it uses less digits than its factorization.

2289820197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109039067.

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

The square root of 2289820197 is about 47852.0657547822. The cubic root of 2289820197 is about 1318.0557919665.

The spelling of 2289820197 in words is "two billion, two hundred eighty-nine million, eight hundred twenty thousand, one hundred ninety-seven".