2189586 has 32 divisors (see below), whose sum is σ = 5143680. Its totient is φ = 608256.

The previous prime is 2189573. The next prime is 2189599. The reversal of 2189586 is 6859812.

It is an interprime number because it is at equal distance from previous prime (2189573) and next prime (2189599).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (160740).

2^2189586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2571840).

2189586 is an abundant number, since it is smaller than the sum of its proper divisors (2954094).

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

2189586 is a wasteful number, since it uses less digits than its factorization.

2189586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458.

The product of its digits is 34560, while the sum is 39.

The square root of 2189586 is about 1479.7249744463. The cubic root of 2189586 is about 129.8536024569.

It can be divided in two parts, 2189 and 586, that added together give a triangular number (2775 = T₇₄).

The spelling of 2189586 in words is "two million, one hundred eighty-nine thousand, five hundred eighty-six".