2189754 has 40 divisors (see below), whose sum is σ = 5610528. Its totient is φ = 625320.

The previous prime is 2189743. The next prime is 2189767. The reversal of 2189754 is 4579812.

2189754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 169 + ... + 2099.

2^2189754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2805264).

2189754 is an abundant number, since it is smaller than the sum of its proper divisors (3420774).

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

2189754 is a wasteful number, since it uses less digits than its factorization.

2189754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952 (or 1943 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 2189754 is about 1479.7817406631. The cubic root of 2189754 is about 129.8569234572.

The spelling of 2189754 in words is "two million, one hundred eighty-nine thousand, seven hundred fifty-four".