189173712 has 240 divisors, whose sum is σ = 641208960. Its totient is φ = 47545344.

The previous prime is 189173701. The next prime is 189173729. The reversal of 189173712 is 217371981.

189173712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 703114 + ... + 703382.

It is an arithmetic number, because the mean of its divisors is an integer number (2671704).

Almost surely, 2^189173712 is an apocalyptic number.

189173712 is a gapful number since it is divisible by the number (12) 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 189173712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320604480).

189173712 is an abundant number, since it is smaller than the sum of its proper divisors (452035248).

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

189173712 is a wasteful number, since it uses less digits than its factorization.

189173712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 317 counting only the distinct ones).

The product of its digits is 21168, while the sum is 39.

The square root of 189173712 is about 13754.0434781921. The cubic root of 189173712 is about 574.0551206238.

The spelling of 189173712 in words is "one hundred eighty-nine million, one hundred seventy-three thousand, seven hundred twelve".