2189548329 has 4 divisors (see below), whose sum is σ = 2919397776. Its totient is φ = 1459698884.

The previous prime is 2189548327. The next prime is 2189548357. The reversal of 2189548329 is 9238459812.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2189548329 - 2¹ = 2189548327 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2189548327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364924719 + ... + 364924724.

It is an arithmetic number, because the mean of its divisors is an integer number (729849444).

Almost surely, 2^2189548329 is an apocalyptic number.

It is an amenable number.

2189548329 is a deficient number, since it is larger than the sum of its proper divisors (729849447).

2189548329 is an equidigital number, since it uses as much as digits as its factorization.

2189548329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729849446.

The product of its digits is 1244160, while the sum is 51.

The square root of 2189548329 is about 46792.6097690650. The cubic root of 2189548329 is about 1298.5285775855.

The spelling of 2189548329 in words is "two billion, one hundred eighty-nine million, five hundred forty-eight thousand, three hundred twenty-nine".