2189712 has 100 divisors (see below), whose sum is σ = 6946480. Its totient is φ = 592704.

The previous prime is 2189699. The next prime is 2189713. The reversal of 2189712 is 2179812.

2189712 is nontrivially palindromic in base 13.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 2189712.

It is not an unprimeable number, because it can be changed into a prime (2189713) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 115239 + ... + 115257.

2^2189712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3473240).

2189712 is an abundant number, since it is smaller than the sum of its proper divisors (4756768).

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

2189712 is an equidigital number, since it uses as much as digits as its factorization.

2189712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 31 counting only the distinct ones).

The product of its digits is 2016, while the sum is 30.

The square root of 2189712 is about 1479.7675493131. The cubic root of 2189712 is about 129.8560932230.

The spelling of 2189712 in words is "two million, one hundred eighty-nine thousand, seven hundred twelve".