189841434 has 8 divisors (see below), whose sum is σ = 379682880. Its totient is φ = 63280476.

The previous prime is 189841411. The next prime is 189841441. The reversal of 189841434 is 434148981.

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

189841434 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15820114 + ... + 15820125.

It is an arithmetic number, because the mean of its divisors is an integer number (47460360).

Almost surely, 2^189841434 is an apocalyptic number.

189841434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189841434 is a wasteful number, since it uses less digits than its factorization.

189841434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31640244.

The product of its digits is 110592, while the sum is 42.

The square root of 189841434 is about 13778.2957581843. The cubic root of 189841434 is about 574.7297371365.

The spelling of 189841434 in words is "one hundred eighty-nine million, eight hundred forty-one thousand, four hundred thirty-four".