189475224 has 64 divisors (see below), whose sum is σ = 502256640. Its totient is φ = 59460480.

The previous prime is 189475213. The next prime is 189475249. The reversal of 189475224 is 422574981.

It is a Cunningham number, because it is equal to 13765²-1.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24087 + ... + 30969.

It is an arithmetic number, because the mean of its divisors is an integer number (7847760).

Almost surely, 2^189475224 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 189475224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251128320).

189475224 is an abundant number, since it is smaller than the sum of its proper divisors (312781416).

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

189475224 is a wasteful number, since it uses less digits than its factorization.

189475224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6960 (or 6956 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 189475224 is about 13764.9999636760. Note that the first 4 decimals coincide. The cubic root of 189475224 is about 574.3599421040.

The spelling of 189475224 in words is "one hundred eighty-nine million, four hundred seventy-five thousand, two hundred twenty-four".