195216784 has 45 divisors (see below), whose sum is σ = 440868267. Its totient is φ = 83496672.

The previous prime is 195216713. The next prime is 195216793. The reversal of 195216784 is 487612591.

The square root of 195216784 is 13972.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 195216784.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 390967 + ... + 391465.

Almost surely, 2^195216784 is an apocalyptic number.

195216784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

195216784 is the 13972-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195216784

195216784 is an abundant number, since it is smaller than the sum of its proper divisors (245651483).

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

195216784 is an frugal number, since it uses more digits than its factorization.

195216784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 508 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The cubic root of 195216784 is about 580.1038101939.

The spelling of 195216784 in words is "one hundred ninety-five million, two hundred sixteen thousand, seven hundred eighty-four".