189502238 has 8 divisors (see below), whose sum is σ = 299214120. Its totient is φ = 89764200.

The previous prime is 189502237. The next prime is 189502241. The reversal of 189502238 is 832205981.

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

It is a super-2 number, since 2×189502238² = 71822196414017288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 4986901 = 189502238 / (1 + 8 + 9 + 5 + 0 + 2 + 2 + 3 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189502237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2493413 + ... + 2493488.

It is an arithmetic number, because the mean of its divisors is an integer number (37401765).

Almost surely, 2^189502238 is an apocalyptic number.

189502238 is a deficient number, since it is larger than the sum of its proper divisors (109711882).

189502238 is a wasteful number, since it uses less digits than its factorization.

189502238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986922.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 189502238 is about 13765.9811855167. The cubic root of 189502238 is about 574.3872368285.

The spelling of 189502238 in words is "one hundred eighty-nine million, five hundred two thousand, two hundred thirty-eight".