2189223789 has 8 divisors (see below), whose sum is σ = 3045876672. Its totient is φ = 1396026720.

The previous prime is 2189223769. The next prime is 2189223793. The reversal of 2189223789 is 9873229812.

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

It is not a de Polignac number, because 2189223789 - 2⁹ = 2189223277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189223709) 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, 15863872 + ... + 15864009.

It is an arithmetic number, because the mean of its divisors is an integer number (380734584).

Almost surely, 2^2189223789 is an apocalyptic number.

It is an amenable number.

2189223789 is a deficient number, since it is larger than the sum of its proper divisors (856652883).

2189223789 is a wasteful number, since it uses less digits than its factorization.

2189223789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31727907.

The product of its digits is 870912, while the sum is 51.

The square root of 2189223789 is about 46789.1417852476. The cubic root of 2189223789 is about 1298.4644174294.

The spelling of 2189223789 in words is "two billion, one hundred eighty-nine million, two hundred twenty-three thousand, seven hundred eighty-nine".