189550912 has 56 divisors (see below), whose sum is σ = 399117312. Its totient is φ = 89126400.

The previous prime is 189550903. The next prime is 189550919. The reversal of 189550912 is 219055981.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189550919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88737 + ... + 90847.

Almost surely, 2^189550912 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 189550912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199558656).

189550912 is an abundant number, since it is smaller than the sum of its proper divisors (209566400).

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

189550912 is a wasteful number, since it uses less digits than its factorization.

189550912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 189550912 is about 13767.7489808610. The cubic root of 189550912 is about 574.4364100931.

The spelling of 189550912 in words is "one hundred eighty-nine million, five hundred fifty thousand, nine hundred twelve".