189004068 has 72 divisors (see below), whose sum is σ = 523635840. Its totient is φ = 57005760.

The previous prime is 189004019. The next prime is 189004069. The reversal of 189004068 is 860400981.

It is a happy number.

189004068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189004069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93646 + ... + 95642.

It is an arithmetic number, because the mean of its divisors is an integer number (7272720).

Almost surely, 2^189004068 is an apocalyptic number.

189004068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189004068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261817920).

189004068 is an abundant number, since it is smaller than the sum of its proper divisors (334631772).

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

189004068 is a wasteful number, since it uses less digits than its factorization.

189004068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257 (or 2252 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 189004068 is about 13747.8750358010. The cubic root of 189004068 is about 573.8834721588.

The spelling of 189004068 in words is "one hundred eighty-nine million, four thousand, sixty-eight".