189285504 has 64 divisors (see below), whose sum is σ = 519041280. Its totient is φ = 61056000.

The previous prime is 189285449. The next prime is 189285533. The reversal of 189285504 is 405582981.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3954 + ... + 19854.

It is an arithmetic number, because the mean of its divisors is an integer number (8110020).

Almost surely, 2^189285504 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 189285504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259520640).

189285504 is an abundant number, since it is smaller than the sum of its proper divisors (329755776).

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

189285504 is a wasteful number, since it uses less digits than its factorization.

189285504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15949 (or 15937 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 189285504 is about 13758.1068465105. The cubic root of 189285504 is about 574.1681774401.

The spelling of 189285504 in words is "one hundred eighty-nine million, two hundred eighty-five thousand, five hundred four".