189834290 has 16 divisors (see below), whose sum is σ = 353485080. Its totient is φ = 73315200.

The previous prime is 189834289. The next prime is 189834311. The reversal of 189834290 is 92438981.

It is a happy number.

189834290 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 101868649 + 87965641 = 10093^2 + 9379^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327011 + ... + 327590.

Almost surely, 2^189834290 is an apocalyptic number.

189834290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189834290 is a deficient number, since it is larger than the sum of its proper divisors (163650790).

189834290 is a wasteful number, since it uses less digits than its factorization.

189834290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654637.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 189834290 is about 13778.0365074273. The cubic root of 189834290 is about 574.7225277501.

The spelling of 189834290 in words is "one hundred eighty-nine million, eight hundred thirty-four thousand, two hundred ninety".