193493828 has 12 divisors (see below), whose sum is σ = 369397392. Its totient is φ = 87951720.

The previous prime is 193493821. The next prime is 193493837. The reversal of 193493828 is 828394391.

It is a happy number.

It is a super-2 number, since 2×193493828² = 74879722948187168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (193493821) 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 3 ways as a sum of consecutive naturals, for example, 2198750 + ... + 2198837.

It is an arithmetic number, because the mean of its divisors is an integer number (30783116).

Almost surely, 2^193493828 is an apocalyptic number.

It is an amenable number.

193493828 is a deficient number, since it is larger than the sum of its proper divisors (175903564).

193493828 is a wasteful number, since it uses less digits than its factorization.

193493828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397602 (or 4397600 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 193493828 is about 13910.2058935157. The cubic root of 193493828 is about 578.3921262464.

The spelling of 193493828 in words is "one hundred ninety-three million, four hundred ninety-three thousand, eight hundred twenty-eight".