2189109600 has 216 divisors, whose sum is σ = 7884807840. Its totient is φ = 571253760.

The previous prime is 2189109589. The next prime is 2189109607. The reversal of 2189109600 is 69019812.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189109607) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 335166 + ... + 341634.

It is an arithmetic number, because the mean of its divisors is an integer number (36503740).

Almost surely, 2^2189109600 is an apocalyptic number.

2189109600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189109600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3942403920).

2189109600 is an abundant number, since it is smaller than the sum of its proper divisors (5695698240).

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

2189109600 is a wasteful number, since it uses less digits than its factorization.

2189109600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542 (or 6526 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 2189109600 is about 46787.9215182722. The cubic root of 2189109600 is about 1298.4418412493.

The spelling of 2189109600 in words is "two billion, one hundred eighty-nine million, one hundred nine thousand, six hundred".