189677238 has 8 divisors (see below), whose sum is σ = 379354488. Its totient is φ = 63225744.

The previous prime is 189677227. The next prime is 189677249. The reversal of 189677238 is 832776981.

It is an interprime number because it is at equal distance from previous prime (189677227) and next prime (189677249).

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

189677238 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15806431 + ... + 15806442.

It is an arithmetic number, because the mean of its divisors is an integer number (47419311).

Almost surely, 2^189677238 is an apocalyptic number.

189677238 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.

189677238 is a wasteful number, since it uses less digits than its factorization.

189677238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31612878.

The product of its digits is 1016064, while the sum is 51.

The square root of 189677238 is about 13772.3359674385. The cubic root of 189677238 is about 574.5639925960.

The spelling of 189677238 in words is "one hundred eighty-nine million, six hundred seventy-seven thousand, two hundred thirty-eight".