189834239 has 8 divisors (see below), whose sum is σ = 217036800. Its totient is φ = 162652536.

The previous prime is 189834233. The next prime is 189834289. The reversal of 189834239 is 932438981.

It is a happy number.

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 189834239 - 2⁸ = 189833983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189834193 and 189834202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189834233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32462 + ... + 37860.

It is an arithmetic number, because the mean of its divisors is an integer number (27129600).

Almost surely, 2^189834239 is an apocalyptic number.

189834239 is a deficient number, since it is larger than the sum of its proper divisors (27202561).

189834239 is an equidigital number, since it uses as much as digits as its factorization.

189834239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10429.

The product of its digits is 373248, while the sum is 47.

The square root of 189834239 is about 13778.0346566555. The cubic root of 189834239 is about 574.7224762827.

The spelling of 189834239 in words is "one hundred eighty-nine million, eight hundred thirty-four thousand, two hundred thirty-nine".