2189500688 has 20 divisors (see below), whose sum is σ = 4252013568. Its totient is φ = 1092206880.

The previous prime is 2189500681. The next prime is 2189500693. The reversal of 2189500688 is 8860059812.

It is not an unprimeable number, because it can be changed into a prime (2189500681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151856 + ... + 165647.

Almost surely, 2^2189500688 is an apocalyptic number.

It is an amenable number.

2189500688 is a deficient number, since it is larger than the sum of its proper divisors (2062512880).

2189500688 is a wasteful number, since it uses less digits than its factorization.

2189500688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317942 (or 317936 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 2189500688 is about 46792.1007008662. The cubic root of 2189500688 is about 1298.5191595626.

The spelling of 2189500688 in words is "two billion, one hundred eighty-nine million, five hundred thousand, six hundred eighty-eight".