195729396 has 12 divisors (see below), whose sum is σ = 456701952. Its totient is φ = 65243128.

The previous prime is 195729389. The next prime is 195729397. The reversal of 195729396 is 693927591.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195729397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8155380 + ... + 8155403.

It is an arithmetic number, because the mean of its divisors is an integer number (38058496).

Almost surely, 2^195729396 is an apocalyptic number.

It is an amenable number.

195729396 is an abundant number, since it is smaller than the sum of its proper divisors (260972556).

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

195729396 is a wasteful number, since it uses less digits than its factorization.

195729396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16310790 (or 16310788 counting only the distinct ones).

The product of its digits is 918540, while the sum is 51.

The square root of 195729396 is about 13990.3322333674. The cubic root of 195729396 is about 580.6111235933.

The spelling of 195729396 in words is "one hundred ninety-five million, seven hundred twenty-nine thousand, three hundred ninety-six".