189557434 has 8 divisors (see below), whose sum is σ = 310184928. Its totient is φ = 86162460.

The previous prime is 189557399. The next prime is 189557443. The reversal of 189557434 is 434755981.

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

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, 4308102 + ... + 4308145.

It is an arithmetic number, because the mean of its divisors is an integer number (38773116).

Almost surely, 2^189557434 is an apocalyptic number.

189557434 is a deficient number, since it is larger than the sum of its proper divisors (120627494).

189557434 is a wasteful number, since it uses less digits than its factorization.

189557434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8616260.

The product of its digits is 604800, while the sum is 46.

The square root of 189557434 is about 13767.9858367156. The cubic root of 189557434 is about 574.4429983517.

The spelling of 189557434 in words is "one hundred eighty-nine million, five hundred fifty-seven thousand, four hundred thirty-four".