2189100988 has 12 divisors (see below), whose sum is σ = 3831254392. Its totient is φ = 1094456880.

The previous prime is 2189100973. The next prime is 2189101003. The reversal of 2189100988 is 8890019812.

2189100988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2189100973) and next prime (2189101003).

It is a super-2 number, since 2×2189100988² = 9584326271325152288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78823 + ... + 102913.

Almost surely, 2^2189100988 is an apocalyptic number.

It is an amenable number.

2189100988 is a deficient number, since it is larger than the sum of its proper divisors (1642153404).

2189100988 is a wasteful number, since it uses less digits than its factorization.

2189100988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46812 (or 46810 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 46.

The square root of 2189100988 is about 46787.8294858823. The cubic root of 2189100988 is about 1298.4401385486.

The spelling of 2189100988 in words is "two billion, one hundred eighty-nine million, one hundred thousand, nine hundred eighty-eight".