189530700 has 144 divisors (see below), whose sum is σ = 592045440. Its totient is φ = 46656000.

The previous prime is 189530657. The next prime is 189530701. The reversal of 189530700 is 7035981.

It is not an unprimeable number, because it can be changed into a prime (189530701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 233295 + ... + 234105.

Almost surely, 2^189530700 is an apocalyptic number.

189530700 is a gapful number since it is divisible by the number (10) 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 189530700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296022720).

189530700 is an abundant number, since it is smaller than the sum of its proper divisors (402514740).

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

189530700 is a wasteful number, since it uses less digits than its factorization.

189530700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 189530700 is about 13767.0149269913. The cubic root of 189530700 is about 574.4159917944.

The spelling of 189530700 in words is "one hundred eighty-nine million, five hundred thirty thousand, seven hundred".