2189648676 has 12 divisors (see below), whose sum is σ = 5109180272. Its totient is φ = 729882888.

The previous prime is 2189648611. The next prime is 2189648687. The reversal of 2189648676 is 6768469812.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2189648676² = 9589122648617105952, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 91235350 + ... + 91235373.

Almost surely, 2^2189648676 is an apocalyptic number.

It is an amenable number.

2189648676 is an abundant number, since it is smaller than the sum of its proper divisors (2919531596).

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

2189648676 is a wasteful number, since it uses less digits than its factorization.

2189648676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182470730 (or 182470728 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The square root of 2189648676 is about 46793.6820094337. The cubic root of 2189648676 is about 1298.5484144707.

The spelling of 2189648676 in words is "two billion, one hundred eighty-nine million, six hundred forty-eight thousand, six hundred seventy-six".