2189575136 has 96 divisors (see below), whose sum is σ = 5204441088. Its totient is φ = 886878720.

The previous prime is 2189575103. The next prime is 2189575147. The reversal of 2189575136 is 6315759812.

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, 294926 + ... + 302258.

It is an arithmetic number, because the mean of its divisors is an integer number (54212928).

Almost surely, 2^2189575136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189575136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2602220544).

2189575136 is an abundant number, since it is smaller than the sum of its proper divisors (3014865952).

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

2189575136 is a wasteful number, since it uses less digits than its factorization.

2189575136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7424 (or 7416 counting only the distinct ones).

The product of its digits is 453600, while the sum is 47.

The square root of 2189575136 is about 46792.8962129937. The cubic root of 2189575136 is about 1298.5338769301.

The spelling of 2189575136 in words is "two billion, one hundred eighty-nine million, five hundred seventy-five thousand, one hundred thirty-six".