2189726000 has 320 divisors, whose sum is σ = 6740997120. Its totient is φ = 668160000.

The previous prime is 2189725933. The next prime is 2189726053. The reversal of 2189726000 is 6279812.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9085880 + ... + 9086120.

It is an arithmetic number, because the mean of its divisors is an integer number (21065616).

Almost surely, 2^2189726000 is an apocalyptic number.

2189726000 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 2189726000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3370498560).

2189726000 is an abundant number, since it is smaller than the sum of its proper divisors (4551271120).

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

2189726000 is a wasteful number, since it uses less digits than its factorization.

2189726000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 2189726000 is about 46794.5082247907. The cubic root of 2189726000 is about 1298.5636996893.

The spelling of 2189726000 in words is "two billion, one hundred eighty-nine million, seven hundred twenty-six thousand".