2189530 has 32 divisors (see below), whose sum is σ = 4654080. Its totient is φ = 725760.

The previous prime is 2189521. The next prime is 2189533. The reversal of 2189530 is 359812.

2189530 = T₁₉ + T₂₀ + ... + T₂₃₅.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1666 + ... + 2674.

It is an arithmetic number, because the mean of its divisors is an integer number (145440).

2^2189530 is an apocalyptic number.

2189530 is an abundant number, since it is smaller than the sum of its proper divisors (2464550).

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

2189530 is a wasteful number, since it uses less digits than its factorization.

2189530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2189530 is about 1479.7060518900. The cubic root of 2189530 is about 129.8524954190.

The spelling of 2189530 in words is "two million, one hundred eighty-nine thousand, five hundred thirty".