2189239 has 8 divisors (see below), whose sum is σ = 2439360. Its totient is φ = 1950816.

The previous prime is 2189227. The next prime is 2189249. The reversal of 2189239 is 9329812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2189239 - 2⁵ = 2189207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189219) 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 7 ways as a sum of consecutive naturals, for example, 2527 + ... + 3280.

It is an arithmetic number, because the mean of its divisors is an integer number (304920).

2^2189239 is an apocalyptic number.

2189239 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2189239 is a deficient number, since it is larger than the sum of its proper divisors (250121).

2189239 is a wasteful number, since it uses less digits than its factorization.

2189239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849.

The product of its digits is 7776, while the sum is 34.

The square root of 2189239 is about 1479.6077182821. The cubic root of 2189239 is about 129.8467424720.

It can be divided in two parts, 218 and 9239, that multiplied together give a palindrome (2014102).

The spelling of 2189239 in words is "two million, one hundred eighty-nine thousand, two hundred thirty-nine".