189531342 has 192 divisors, whose sum is σ = 563157504. Its totient is φ = 44478720.

The previous prime is 189531341. The next prime is 189531343. The reversal of 189531342 is 243135981.

189531342 is a `hidden beast` number, since 1 + 89 + 531 + 3 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (189531341) and next prime (189531343).

It is a junction number, because it is equal to n+sod(n) for n = 189531297 and 189531306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189531341) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1207128 + ... + 1207284.

It is an arithmetic number, because the mean of its divisors is an integer number (2933112).

Almost surely, 2^189531342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189531342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281578752).

189531342 is an abundant number, since it is smaller than the sum of its proper divisors (373626162).

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

189531342 is a wasteful number, since it uses less digits than its factorization.

189531342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 260 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 189531342 is about 13767.0382435729. The cubic root of 189531342 is about 574.4166403694.

The spelling of 189531342 in words is "one hundred eighty-nine million, five hundred thirty-one thousand, three hundred forty-two".