2189504 has 14 divisors (see below), whose sum is σ = 4344924. Its totient is φ = 1094720.

The previous prime is 2189491. The next prime is 2189513. The reversal of 2189504 is 4059812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17042 + ... + 17169.

2^2189504 is an apocalyptic number.

It is an amenable number.

2189504 is a deficient number, since it is larger than the sum of its proper divisors (2155420).

2189504 is an equidigital number, since it uses as much as digits as its factorization.

2189504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34223 (or 34213 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2189504 is about 1479.6972663352. The cubic root of 2189504 is about 129.8519814308.

The spelling of 2189504 in words is "two million, one hundred eighty-nine thousand, five hundred four".