189785968 has 30 divisors (see below), whose sum is σ = 379985352. Its totient is φ = 91824480.

The previous prime is 189785957. The next prime is 189785989. The reversal of 189785968 is 869587981.

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 5 ways as a sum of consecutive naturals, for example, 9205 + ... + 21547.

Almost surely, 2^189785968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189785968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189992676).

189785968 is an abundant number, since it is smaller than the sum of its proper divisors (190199384).

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

189785968 is a wasteful number, since it uses less digits than its factorization.

189785968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12413 (or 12376 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 61.

The square root of 189785968 is about 13776.2828077824. The cubic root of 189785968 is about 574.6737587268.

The spelling of 189785968 in words is "one hundred eighty-nine million, seven hundred eighty-five thousand, nine hundred sixty-eight".