189568834 has 32 divisors (see below), whose sum is σ = 359444736. Its totient is φ = 72964800.

The previous prime is 189568831. The next prime is 189568849. The reversal of 189568834 is 438865981.

It is not an unprimeable number, because it can be changed into a prime (189568831) 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 15 ways as a sum of consecutive naturals, for example, 7342 + ... + 20809.

It is an arithmetic number, because the mean of its divisors is an integer number (11232648).

Almost surely, 2^189568834 is an apocalyptic number.

189568834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

189568834 is a deficient number, since it is larger than the sum of its proper divisors (169875902).

189568834 is a wasteful number, since it uses less digits than its factorization.

189568834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28210.

The product of its digits is 1658880, while the sum is 52.

The square root of 189568834 is about 13768.3998344034. The cubic root of 189568834 is about 574.4545138043.

The spelling of 189568834 in words is "one hundred eighty-nine million, five hundred sixty-eight thousand, eight hundred thirty-four".