2189046528 has 216 divisors, whose sum is σ = 6667446240. Its totient is φ = 689356800.

The previous prime is 2189046499. The next prime is 2189046529. The reversal of 2189046528 is 8256409812.

2189046528 is a `hidden beast` number, since 2 + 1 + 89 + 0 + 46 + 528 = 666.

It is not an unprimeable number, because it can be changed into a prime (2189046529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5351988 + ... + 5352396.

Almost surely, 2^2189046528 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 2189046528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3333723120).

2189046528 is an abundant number, since it is smaller than the sum of its proper divisors (4478399712).

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

2189046528 is a wasteful number, since it uses less digits than its factorization.

2189046528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 2189046528 is about 46787.2474933074. The cubic root of 2189046528 is about 1298.4293710178.

The spelling of 2189046528 in words is "two billion, one hundred eighty-nine million, forty-six thousand, five hundred twenty-eight".