189856224 has 120 divisors (see below), whose sum is σ = 565321680. Its totient is φ = 62498304.

The previous prime is 189856207. The next prime is 189856253. The reversal of 189856224 is 422658981.

189856224 is a `hidden beast` number, since 1 + 89 + 8 + 562 + 2 + 4 = 666.

189856224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 189856224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 230277 + ... + 231099.

It is an arithmetic number, because the mean of its divisors is an integer number (4711014).

Almost surely, 2^189856224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189856224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282660840).

189856224 is an abundant number, since it is smaller than the sum of its proper divisors (375465456).

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

189856224 is an equidigital number, since it uses as much as digits as its factorization.

189856224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 917 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 189856224 is about 13778.8324614243. The cubic root of 189856224 is about 574.7446619291.

The spelling of 189856224 in words is "one hundred eighty-nine million, eight hundred fifty-six thousand, two hundred twenty-four".