2219831289 has 24 divisors (see below), whose sum is σ = 3455105472. Its totient is φ = 1365245280.

The previous prime is 2219831239. The next prime is 2219831293. The reversal of 2219831289 is 9821389122.

It is a happy number.

It is not a de Polignac number, because 2219831289 - 2²¹ = 2217734137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2219831209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239634 + ... + 248724.

It is an arithmetic number, because the mean of its divisors is an integer number (143962728).

Almost surely, 2^2219831289 is an apocalyptic number.

It is an amenable number.

2219831289 is a deficient number, since it is larger than the sum of its proper divisors (1235274183).

2219831289 is a wasteful number, since it uses less digits than its factorization.

2219831289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11197 (or 11194 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 2219831289 is about 47115.0855777637. The cubic root of 2219831289 is about 1304.4877030872.

The spelling of 2219831289 in words is "two billion, two hundred nineteen million, eight hundred thirty-one thousand, two hundred eighty-nine".