193308828 has 24 divisors (see below), whose sum is σ = 452201232. Its totient is φ = 64272384.

The previous prime is 193308827. The next prime is 193308833. The reversal of 193308828 is 828803391.

193308828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 193308828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193308827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15525 + ... + 25052.

It is an arithmetic number, because the mean of its divisors is an integer number (18841718).

Almost surely, 2^193308828 is an apocalyptic number.

It is an amenable number.

193308828 is an abundant number, since it is smaller than the sum of its proper divisors (258892404).

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

193308828 is a wasteful number, since it uses less digits than its factorization.

193308828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40981 (or 40979 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 193308828 is about 13903.5545095490. The cubic root of 193308828 is about 578.2077333480.

The spelling of 193308828 in words is "one hundred ninety-three million, three hundred eight thousand, eight hundred twenty-eight".