197628288 has 256 divisors, whose sum is σ = 637459200. Its totient is φ = 53452800.

The previous prime is 197628283. The next prime is 197628313. The reversal of 197628288 is 882826791.

It is a happy number.

197628288 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 197628288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197628283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3239778 + ... + 3239838.

It is an arithmetic number, because the mean of its divisors is an integer number (2490075).

Almost surely, 2^197628288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197628288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318729600).

197628288 is an abundant number, since it is smaller than the sum of its proper divisors (439830912).

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

197628288 is a wasteful number, since it uses less digits than its factorization.

197628288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 149 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 197628288 is about 14058.0328638114. The cubic root of 197628288 is about 582.4827067263.

The spelling of 197628288 in words is "one hundred ninety-seven million, six hundred twenty-eight thousand, two hundred eighty-eight".