195358128 has 80 divisors (see below), whose sum is σ = 579129600. Its totient is φ = 55588608.

The previous prime is 195358109. The next prime is 195358183. The reversal of 195358128 is 821853591.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 195358128.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92023 + ... + 94121.

It is an arithmetic number, because the mean of its divisors is an integer number (7239120).

Almost surely, 2^195358128 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 195358128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289564800).

195358128 is an abundant number, since it is smaller than the sum of its proper divisors (383771472).

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

195358128 is a wasteful number, since it uses less digits than its factorization.

195358128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394 (or 2388 counting only the distinct ones).

The product of its digits is 86400, while the sum is 42.

The square root of 195358128 is about 13977.0572009991. The cubic root of 195358128 is about 580.2437817857.

The spelling of 195358128 in words is "one hundred ninety-five million, three hundred fifty-eight thousand, one hundred twenty-eight".