193128800 has 72 divisors (see below), whose sum is σ = 478078776. Its totient is φ = 76170240.

The previous prime is 193128797. The next prime is 193128809. The reversal of 193128800 is 8821391.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193128809) 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, 56747 + ... + 60053.

It is an arithmetic number, because the mean of its divisors is an integer number (6639983).

Almost surely, 2^193128800 is an apocalyptic number.

193128800 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 193128800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239039388).

193128800 is an abundant number, since it is smaller than the sum of its proper divisors (284949976).

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

193128800 is a wasteful number, since it uses less digits than its factorization.

193128800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400 (or 3387 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 193128800 is about 13897.0788297397. The cubic root of 193128800 is about 578.0281831542.

The spelling of 193128800 in words is "one hundred ninety-three million, one hundred twenty-eight thousand, eight hundred".