2189769822 has 32 divisors (see below), whose sum is σ = 4909232160. Its totient is φ = 723461760.

The previous prime is 2189769811. The next prime is 2189769833. The reversal of 2189769822 is 2289679812.

It is an interprime number because it is at equal distance from previous prime (2189769811) and next prime (2189769833).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173329 + ... + 185532.

It is an arithmetic number, because the mean of its divisors is an integer number (153413505).

Almost surely, 2^2189769822 is an apocalyptic number.

2189769822 is an abundant number, since it is smaller than the sum of its proper divisors (2719462338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2189769822 is a wasteful number, since it uses less digits than its factorization.

2189769822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358985 (or 358979 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 2189769822 is about 46794.9764611545. The cubic root of 2189769822 is about 1298.5723621549.

It can be divided in two parts, 21897 and 69822, that added together give a palindrome (91719).

The spelling of 2189769822 in words is "two billion, one hundred eighty-nine million, seven hundred sixty-nine thousand, eight hundred twenty-two".