2189163732 has 96 divisors (see below), whose sum is σ = 5939619840. Its totient is φ = 614624640.

The previous prime is 2189163727. The next prime is 2189163737. The reversal of 2189163732 is 2373619812.

It is an interprime number because it is at equal distance from previous prime (2189163727) and next prime (2189163737).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189163737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3321619 + ... + 3322277.

It is an arithmetic number, because the mean of its divisors is an integer number (61871040).

Almost surely, 2^2189163732 is an apocalyptic number.

It is a pronic number, being equal to 46788×46789.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189163732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2969809920).

2189163732 is an abundant number, since it is smaller than the sum of its proper divisors (3750456108).

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

2189163732 is a wasteful number, since it uses less digits than its factorization.

2189163732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1299 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 2189163732 is about 46788.4999973284. The cubic root of 2189163732 is about 1298.4525437246.

The spelling of 2189163732 in words is "two billion, one hundred eighty-nine million, one hundred sixty-three thousand, seven hundred thirty-two".