189509022 has 24 divisors (see below), whose sum is σ = 416230464. Its totient is φ = 62303904.

The previous prime is 189509009. The next prime is 189509039. The reversal of 189509022 is 220905981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70798 + ... + 73425.

It is an arithmetic number, because the mean of its divisors is an integer number (17342936).

Almost surely, 2^189509022 is an apocalyptic number.

189509022 is an abundant number, since it is smaller than the sum of its proper divisors (226721442).

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

189509022 is a wasteful number, since it uses less digits than its factorization.

189509022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144304 (or 144301 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 189509022 is about 13766.2275878325. The cubic root of 189509022 is about 574.3940909191.

It can be divided in two parts, 18950 and 9022, that added together give a palindrome (27972).

The spelling of 189509022 in words is "one hundred eighty-nine million, five hundred nine thousand, twenty-two".