189694160 has 80 divisors (see below), whose sum is σ = 471947472. Its totient is φ = 70656000.

The previous prime is 189694159. The next prime is 189694171. The reversal of 189694160 is 61496981.

It can be written as a sum of positive squares in 8 ways, for example, as 21939856 + 167754304 = 4684^2 + 12952^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136670 + ... + 138050.

Almost surely, 2^189694160 is an apocalyptic number.

189694160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189694160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235973736).

189694160 is an abundant number, since it is smaller than the sum of its proper divisors (282253312).

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

189694160 is a wasteful number, since it uses less digits than its factorization.

189694160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 189694160 is about 13772.9503012245. The cubic root of 189694160 is about 574.5810786081.

The spelling of 189694160 in words is "one hundred eighty-nine million, six hundred ninety-four thousand, one hundred sixty".