195017730 has 32 divisors (see below), whose sum is σ = 479461248. Its totient is φ = 50736000.

The previous prime is 195017699. The next prime is 195017731. The reversal of 195017730 is 37710591.

It is a junction number, because it is equal to n+sod(n) for n = 195017691 and 195017700.

It is not an unprimeable number, because it can be changed into a prime (195017731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78046 + ... + 80505.

It is an arithmetic number, because the mean of its divisors is an integer number (14983164).

Almost surely, 2^195017730 is an apocalyptic number.

195017730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195017730 is an abundant number, since it is smaller than the sum of its proper divisors (284443518).

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

195017730 is a wasteful number, since it uses less digits than its factorization.

195017730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158602.

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 195017730 is about 13964.8748651751. The cubic root of 195017730 is about 579.9065743296.

The spelling of 195017730 in words is "one hundred ninety-five million, seventeen thousand, seven hundred thirty".