2189668600 has 48 divisors (see below), whose sum is σ = 5818266000. Its totient is φ = 750743040.

The previous prime is 2189668589. The next prime is 2189668703. The reversal of 2189668600 is 68669812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 780625 + ... + 783424.

It is an arithmetic number, because the mean of its divisors is an integer number (121213875).

Almost surely, 2^2189668600 is an apocalyptic number.

2189668600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2189668600 is an abundant number, since it is smaller than the sum of its proper divisors (3628597400).

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

2189668600 is a wasteful number, since it uses less digits than its factorization.

2189668600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564072 (or 1564063 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 2189668600 is about 46793.8949009377. The cubic root of 2189668600 is about 1298.5523530325.

The spelling of 2189668600 in words is "two billion, one hundred eighty-nine million, six hundred sixty-eight thousand, six hundred".