189834238 has 24 divisors (see below), whose sum is σ = 316256976. Its totient is φ = 85388160.

The previous prime is 189834233. The next prime is 189834289. The reversal of 189834238 is 832438981.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19431 + ... + 27517.

It is an arithmetic number, because the mean of its divisors is an integer number (13177374).

Almost surely, 2^189834238 is an apocalyptic number.

189834238 is a deficient number, since it is larger than the sum of its proper divisors (126422738).

189834238 is a wasteful number, since it uses less digits than its factorization.

189834238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8208 (or 8197 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 189834238 is about 13778.0346203659. The cubic root of 189834238 is about 574.7224752735.

The spelling of 189834238 in words is "one hundred eighty-nine million, eight hundred thirty-four thousand, two hundred thirty-eight".