2189250 has 96 divisors (see below), whose sum is σ = 6814080. Its totient is φ = 496800.

The previous prime is 2189249. The next prime is 2189267. The reversal of 2189250 is 529812.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15681 + ... + 15819.

It is an arithmetic number, because the mean of its divisors is an integer number (70980).

2^2189250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3407040).

2189250 is an abundant number, since it is smaller than the sum of its proper divisors (4624830).

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

2189250 is a wasteful number, since it uses less digits than its factorization.

2189250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2189250 is about 1479.6114354789. The cubic root of 2189250 is about 129.8469599466.

The spelling of 2189250 in words is "two million, one hundred eighty-nine thousand, two hundred fifty".