189235800 has 144 divisors (see below), whose sum is σ = 684487440. Its totient is φ = 46575360.

The previous prime is 189235799. The next prime is 189235807. The reversal of 189235800 is 8532981.

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 (189235807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19357 + ... + 27443.

It is an arithmetic number, because the mean of its divisors is an integer number (4753385).

Almost surely, 2^189235800 is an apocalyptic number.

189235800 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 189235800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342243720).

189235800 is an abundant number, since it is smaller than the sum of its proper divisors (495251640).

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

189235800 is a wasteful number, since it uses less digits than its factorization.

189235800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8122 (or 8110 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 189235800 is about 13756.3003747374. The cubic root of 189235800 is about 574.1179165859.

The spelling of 189235800 in words is "one hundred eighty-nine million, two hundred thirty-five thousand, eight hundred".