2819220189 has 16 divisors (see below), whose sum is σ = 3781209600. Its totient is φ = 1868380416.

The previous prime is 2819220167. The next prime is 2819220227. The reversal of 2819220189 is 9810229182.

It is not a de Polignac number, because 2819220189 - 2¹² = 2819216093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2819220189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2819220139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538617 + ... + 543825.

It is an arithmetic number, because the mean of its divisors is an integer number (236325600).

Almost surely, 2^2819220189 is an apocalyptic number.

It is an amenable number.

2819220189 is a deficient number, since it is larger than the sum of its proper divisors (961989411).

2819220189 is a wasteful number, since it uses less digits than its factorization.

2819220189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6244.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 2819220189 is about 53096.3293364052. The cubic root of 2819220189 is about 1412.6774050703.

The spelling of 2819220189 in words is "two billion, eight hundred nineteen million, two hundred twenty thousand, one hundred eighty-nine".