189821226 has 32 divisors (see below), whose sum is σ = 444463488. Its totient is φ = 52911360.

The previous prime is 189821213. The next prime is 189821237. The reversal of 189821226 is 622128981.

189821226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53395 + ... + 56838.

It is an arithmetic number, because the mean of its divisors is an integer number (13889484).

Almost surely, 2^189821226 is an apocalyptic number.

189821226 is an abundant number, since it is smaller than the sum of its proper divisors (254642262).

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

189821226 is a wasteful number, since it uses less digits than its factorization.

189821226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110286.

The product of its digits is 27648, while the sum is 39.

The square root of 189821226 is about 13777.5624113992. The cubic root of 189821226 is about 574.7093437124.

The spelling of 189821226 in words is "one hundred eighty-nine million, eight hundred twenty-one thousand, two hundred twenty-six".