189841312 has 48 divisors (see below), whose sum is σ = 416586240. Its totient is φ = 84630528.

The previous prime is 189841247. The next prime is 189841321. The reversal of 189841312 is 213148981.

189841312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153 + ... + 19519.

It is an arithmetic number, because the mean of its divisors is an integer number (8678880).

Almost surely, 2^189841312 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 189841312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208293120).

189841312 is an abundant number, since it is smaller than the sum of its proper divisors (226744928).

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

189841312 is a wasteful number, since it uses less digits than its factorization.

189841312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18413 (or 18405 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 189841312 is about 13778.2913309307. The cubic root of 189841312 is about 574.7296140214.

The spelling of 189841312 in words is "one hundred eighty-nine million, eight hundred forty-one thousand, three hundred twelve".