189941544 has 256 divisors, whose sum is σ = 631411200. Its totient is φ = 52310016.

The previous prime is 189941519. The next prime is 189941551. The reversal of 189941544 is 445149981.

It is a happy number.

189941544 is a `hidden beast` number, since 18 + 9 + 94 + 1 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 189941544.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1097842 + ... + 1098014.

It is an arithmetic number, because the mean of its divisors is an integer number (2466450).

Almost surely, 2^189941544 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 189941544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315705600).

189941544 is an abundant number, since it is smaller than the sum of its proper divisors (441469656).

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

189941544 is a wasteful number, since it uses less digits than its factorization.

189941544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 231 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 189941544 is about 13781.9281669874. The cubic root of 189941544 is about 574.8307443861.

The spelling of 189941544 in words is "one hundred eighty-nine million, nine hundred forty-one thousand, five hundred forty-four".