189084384 has 144 divisors (see below), whose sum is σ = 560589120. Its totient is φ = 60410880.

The previous prime is 189084383. The next prime is 189084397. The reversal of 189084384 is 483480981.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189084383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 825582 + ... + 825810.

It is an arithmetic number, because the mean of its divisors is an integer number (3892980).

Almost surely, 2^189084384 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 189084384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280294560).

189084384 is an abundant number, since it is smaller than the sum of its proper divisors (371504736).

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

189084384 is a wasteful number, since it uses less digits than its factorization.

189084384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 189084384 is about 13750.7957587916. The cubic root of 189084384 is about 573.9647499467.

The spelling of 189084384 in words is "one hundred eighty-nine million, eighty-four thousand, three hundred eighty-four".