194867828 has 12 divisors (see below), whose sum is σ = 348274752. Its totient is φ = 95360760.

The previous prime is 194867809. The next prime is 194867833. The reversal of 194867828 is 828768491.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 194867828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518078 + ... + 518453.

It is an arithmetic number, because the mean of its divisors is an integer number (29022896).

Almost surely, 2^194867828 is an apocalyptic number.

It is an amenable number.

194867828 is a deficient number, since it is larger than the sum of its proper divisors (153406924).

194867828 is a wasteful number, since it uses less digits than its factorization.

194867828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036582 (or 1036580 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 53.

The square root of 194867828 is about 13959.5067248094. The cubic root of 194867828 is about 579.7579529064.

The spelling of 194867828 in words is "one hundred ninety-four million, eight hundred sixty-seven thousand, eight hundred twenty-eight".