189004000 has 48 divisors (see below), whose sum is σ = 464392656. Its totient is φ = 75600000.

The previous prime is 189003961. The next prime is 189004003. The reversal of 189004000 is 400981.

189004000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189004003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19626 + ... + 27625.

It is an arithmetic number, because the mean of its divisors is an integer number (9674847).

Almost surely, 2^189004000 is an apocalyptic number.

189004000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189004000 is an abundant number, since it is smaller than the sum of its proper divisors (275388656).

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

189004000 is an equidigital number, since it uses as much as digits as its factorization.

189004000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47276 (or 47258 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 189004000 is about 13747.8725626913. The cubic root of 189004000 is about 573.8834033348.

Adding to 189004000 its reverse (400981), we get a palindrome (189404981).

The spelling of 189004000 in words is "one hundred eighty-nine million, four thousand".