189459956 has 24 divisors (see below), whose sum is σ = 380155776. Its totient is φ = 80932320.

The previous prime is 189459937. The next prime is 189459979. The reversal of 189459956 is 659954981.

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 7 ways as a sum of consecutive naturals, for example, 2171 + ... + 19586.

It is an arithmetic number, because the mean of its divisors is an integer number (15839824).

Almost surely, 2^189459956 is an apocalyptic number.

It is an amenable number.

189459956 is an abundant number, since it is smaller than the sum of its proper divisors (190695820).

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

189459956 is a wasteful number, since it uses less digits than its factorization.

189459956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22079 (or 22077 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 56.

The square root of 189459956 is about 13764.4453575144. The cubic root of 189459956 is about 574.3445142942.

The spelling of 189459956 in words is "one hundred eighty-nine million, four hundred fifty-nine thousand, nine hundred fifty-six".