197895258 has 96 divisors (see below), whose sum is σ = 499484160. Its totient is φ = 57974400.

The previous prime is 197895253. The next prime is 197895343. The reversal of 197895258 is 852598791.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (197895251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202066 + ... + 203042.

It is an arithmetic number, because the mean of its divisors is an integer number (5202960).

Almost surely, 2^197895258 is an apocalyptic number.

197895258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 197895258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249742080).

197895258 is an abundant number, since it is smaller than the sum of its proper divisors (301588902).

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

197895258 is a wasteful number, since it uses less digits than its factorization.

197895258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1024 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 54.

The square root of 197895258 is about 14067.5249422206. The cubic root of 197895258 is about 582.7448747249.

The spelling of 197895258 in words is "one hundred ninety-seven million, eight hundred ninety-five thousand, two hundred fifty-eight".