195361728 has 56 divisors (see below), whose sum is σ = 528937728. Its totient is φ = 63603456.

The previous prime is 195361703. The next prime is 195361753. The reversal of 195361728 is 827163591.

It is an interprime number because it is at equal distance from previous prime (195361703) and next prime (195361753).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 195361728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3576 + ... + 20087.

Almost surely, 2^195361728 is an apocalyptic number.

It is an amenable number.

195361728 is an abundant number, since it is smaller than the sum of its proper divisors (333576000).

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

195361728 is a wasteful number, since it uses less digits than its factorization.

195361728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23721 (or 23711 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 195361728 is about 13977.1859828794. The cubic root of 195361728 is about 580.2473459489.

The spelling of 195361728 in words is "one hundred ninety-five million, three hundred sixty-one thousand, seven hundred twenty-eight".