2188896 has 36 divisors (see below), whose sum is σ = 5784156. Its totient is φ = 724800.

The previous prime is 2188877. The next prime is 2188909. The reversal of 2188896 is 6988812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14421 + ... + 14571.

It is an arithmetic number, because the mean of its divisors is an integer number (160671).

2^2188896 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 2188896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2892078).

2188896 is an abundant number, since it is smaller than the sum of its proper divisors (3595260).

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

2188896 is an equidigital number, since it uses as much as digits as its factorization.

2188896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 156 counting only the distinct ones).

The product of its digits is 55296, while the sum is 42.

The square root of 2188896 is about 1479.4918046410. The cubic root of 2188896 is about 129.8399608523.

Multiplying 2188896 by its product of digits (55296), we get a square (121037193216 = 347904²).

The spelling of 2188896 in words is "two million, one hundred eighty-eight thousand, eight hundred ninety-six".