189670272 has 128 divisors (see below), whose sum is σ = 557262720. Its totient is φ = 56678400.

The previous prime is 189670267. The next prime is 189670297. The reversal of 189670272 is 272076981.

It is a tau number, because it is divible by the number of its divisors (128).

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, 350322 + ... + 350862.

It is an arithmetic number, because the mean of its divisors is an integer number (4353615).

Almost surely, 2^189670272 is an apocalyptic number.

189670272 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 189670272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278631360).

189670272 is an abundant number, since it is smaller than the sum of its proper divisors (367592448).

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

189670272 is a wasteful number, since it uses less digits than its factorization.

189670272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 189670272 is about 13772.0830668421. The cubic root of 189670272 is about 574.5569587846.

The spelling of 189670272 in words is "one hundred eighty-nine million, six hundred seventy thousand, two hundred seventy-two".