2189370 has 64 divisors (see below), whose sum is σ = 5806080. Its totient is φ = 525888.

The previous prime is 2189357. The next prime is 2189371. The reversal of 2189370 is 739812.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2189371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13027 + ... + 13193.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^2189370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903040).

2189370 is an abundant number, since it is smaller than the sum of its proper divisors (3616710).

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

2189370 is a wasteful number, since it uses less digits than its factorization.

2189370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2189370 is about 1479.6519861102. The cubic root of 2189370 is about 129.8493323497.

The spelling of 2189370 in words is "two million, one hundred eighty-nine thousand, three hundred seventy".