195894720 has 448 divisors, whose sum is σ = 819302400. Its totient is φ = 43130880.

The previous prime is 195894719. The next prime is 195894733. The reversal of 195894720 is 27498591.

195894720 is a `hidden beast` number, since 1 + 9 + 589 + 47 + 20 = 666.

195894720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2479641 + ... + 2479719.

It is an arithmetic number, because the mean of its divisors is an integer number (1828800).

Almost surely, 2^195894720 is an apocalyptic number.

195894720 is a gapful number since it is divisible by the number (10) 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 195894720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409651200).

195894720 is an abundant number, since it is smaller than the sum of its proper divisors (623407680).

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

195894720 is a wasteful number, since it uses less digits than its factorization.

195894720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 195894720 is about 13996.2394949501. The cubic root of 195894720 is about 580.7745498035.

The spelling of 195894720 in words is "one hundred ninety-five million, eight hundred ninety-four thousand, seven hundred twenty".