189512708 has 48 divisors (see below), whose sum is σ = 414626688. Its totient is φ = 73632000.

The previous prime is 189512699. The next prime is 189512749. The reversal of 189512708 is 807215981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159878 + ... + 161058.

It is an arithmetic number, because the mean of its divisors is an integer number (8638056).

Almost surely, 2^189512708 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 189512708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207313344).

189512708 is an abundant number, since it is smaller than the sum of its proper divisors (225113980).

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

189512708 is a wasteful number, since it uses less digits than its factorization.

189512708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 189512708 is about 13766.3614655435. The cubic root of 189512708 is about 574.3978149334.

The spelling of 189512708 in words is "one hundred eighty-nine million, five hundred twelve thousand, seven hundred eight".