189828772 has 24 divisors (see below), whose sum is σ = 399640640. Its totient is φ = 77073120.

The previous prime is 189828739. The next prime is 189828773. The reversal of 189828772 is 277828981.

It is not an unprimeable number, because it can be changed into a prime (189828773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177879 + ... + 178942.

Almost surely, 2^189828772 is an apocalyptic number.

It is an amenable number.

189828772 is an abundant number, since it is smaller than the sum of its proper divisors (209811868).

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

189828772 is a wasteful number, since it uses less digits than its factorization.

189828772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356851 (or 356849 counting only the distinct ones).

The product of its digits is 903168, while the sum is 52.

The square root of 189828772 is about 13777.8362597325. The cubic root of 189828772 is about 574.7169591221.

The spelling of 189828772 in words is "one hundred eighty-nine million, eight hundred twenty-eight thousand, seven hundred seventy-two".