189741888 has 84 divisors (see below), whose sum is σ = 621568480. Its totient is φ = 54210816.

The previous prime is 189741887. The next prime is 189741949. The reversal of 189741888 is 888147981.

It is a happy number.

189741888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189741887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19498 + ... + 27561.

Almost surely, 2^189741888 is an apocalyptic number.

189741888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

189741888 is an abundant number, since it is smaller than the sum of its proper divisors (431826592).

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

189741888 is a wasteful number, since it uses less digits than its factorization.

189741888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47084 (or 47071 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 54.

The square root of 189741888 is about 13774.6828638630. The cubic root of 189741888 is about 574.6292637254.

The spelling of 189741888 in words is "one hundred eighty-nine million, seven hundred forty-one thousand, eight hundred eighty-eight".