189119638 has 8 divisors (see below), whose sum is σ = 283737960. Its totient is φ = 94540320.

The previous prime is 189119629. The next prime is 189119653. The reversal of 189119638 is 836911981.

It is a happy number.

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

It is a congruent 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, 12853 + ... + 23311.

It is an arithmetic number, because the mean of its divisors is an integer number (35467245).

Almost surely, 2^189119638 is an apocalyptic number.

189119638 is a deficient number, since it is larger than the sum of its proper divisors (94618322).

189119638 is a wasteful number, since it uses less digits than its factorization.

189119638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19502.

The product of its digits is 93312, while the sum is 46.

The square root of 189119638 is about 13752.0775884955. The cubic root of 189119638 is about 574.0004188466. Note that the first 3 decimals are identical.

The spelling of 189119638 in words is "one hundred eighty-nine million, one hundred nineteen thousand, six hundred thirty-eight".