189270500 has 48 divisors (see below), whose sum is σ = 426736128. Its totient is φ = 73260000.

The previous prime is 189270467. The next prime is 189270517. The reversal of 189270500 is 5072981.

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, 9395 + ... + 21605.

It is an arithmetic number, because the mean of its divisors is an integer number (8890336).

Almost surely, 2^189270500 is an apocalyptic number.

189270500 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 189270500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213368064).

189270500 is an abundant number, since it is smaller than the sum of its proper divisors (237465628).

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

189270500 is a wasteful number, since it uses less digits than its factorization.

189270500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12261 (or 12249 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 189270500 is about 13757.5615571946. The cubic root of 189270500 is about 574.1530062714.

The spelling of 189270500 in words is "one hundred eighty-nine million, two hundred seventy thousand, five hundred".