195193856 has 176 divisors, whose sum is σ = 484205568. Its totient is φ = 77414400.

The previous prime is 195193849. The next prime is 195193871. The reversal of 195193856 is 658391591.

It is a tau number, because it is divible by the number of its divisors (176).

It is a super-3 number, since 3×195193856³ (a number of 26 digits) contains 333 as substring.

Its product of digits (291600) is a multiple of the sum of its prime divisors (100).

It is a self number, because there is not a number n which added to its sum of digits gives 195193856.

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, 4539371 + ... + 4539413.

It is an arithmetic number, because the mean of its divisors is an integer number (2751168).

Almost surely, 2^195193856 is an apocalyptic number.

195193856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195193856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242102784).

195193856 is an abundant number, since it is smaller than the sum of its proper divisors (289011712).

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

195193856 is a wasteful number, since it uses less digits than its factorization.

195193856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 100 counting only the distinct ones).

The product of its digits is 291600, while the sum is 47.

The square root of 195193856 is about 13971.1794777678. The cubic root of 195193856 is about 580.0810984498.

The spelling of 195193856 in words is "one hundred ninety-five million, one hundred ninety-three thousand, eight hundred fifty-six".