195387228 has 30 divisors (see below), whose sum is σ = 510781656. Its totient is φ = 65128968.

The previous prime is 195387221. The next prime is 195387259. The reversal of 195387228 is 822783591.

It is a happy number.

195387228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195387221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 301200 + ... + 301847.

Almost surely, 2^195387228 is an apocalyptic number.

195387228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

195387228 is an abundant number, since it is smaller than the sum of its proper divisors (315394428).

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

195387228 is a wasteful number, since it uses less digits than its factorization.

195387228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603063 (or 603052 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 195387228 is about 13978.0981538978. The cubic root of 195387228 is about 580.2725908519.

The spelling of 195387228 in words is "one hundred ninety-five million, three hundred eighty-seven thousand, two hundred twenty-eight".